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Torque sensors / torque transducers /
torque measurement
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A
selection of recently
published
technical
articles, white papers, products
&
application examples: |
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Model 5i Advanced Force/Torque Indicator |
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 Cooper
Instruments & Systems: The 5i advanced digital force /
torque indicator is designed to work with a wide range of remote
force sensors and torque sensors. With
exclusive Plug & Test™ technology, all calibration and
configuration data is saved within the sensor’s smart connector,
not the indicator, allowing for true interchangeability. In
addition, all sensors are fully compatible with the more basic
3i force / torque indicator. The 5i shares its menu structure
and most specifications with Series 5 digital force gauges. The
sampling rate is a blazing fast 7,000 Hz, producing accurate
results even for quick-action tests. A large, backlit graphics
LCD displays large, legible characters, while the simple menu
navigation allows for quick access to the indicator’s many
features and configurable parameters. Data can be transferred to
a PC or data collectors via USB, RS-232, Mitutoyo (Digimatic),
or analog outputs. On-board data memory for up to 1,000 readings
is included, as are statistical calculations with output to a
PC. Integrated set points with indicators and outputs are ideal
for pass-fail testing and for triggering external devices such
as an alarm, relay, or test stand. An analog load bar is shown
on the display for graphical representation of applied force or
torque. ... |
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+ Info |
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| Dual range torque sensor DR2208 |
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 SCAIME:
Especially designed to instrument engine test benches,
the new DR2208
torque sensor offers dual range capabilities with
two independent outputs/channels. The level of this
sensor enables testing engines of various powers while
keeping the same high accuracy. The signal transmission
between the fixed and the rotating parts is done without
any electrical contact and reaches a speed up to 8000
tr/min with an accuracy of 0.1%. Thanks to the dual
output with a factor of 10, i.e the torquemeter
DR2208-100/1000Nm provides a 0/10V output signal for a
0/100Nm torque while the second output provides a 0/10V
signal for a 0/1000 Nm torque. Our DR2208 torque sensor
offers the great advantage of avoiding multiple
assembly/disassembly operations. It saves time, offers a
very reliable measurement and prevents the sensor from
being damaged during ... |
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+ Info |
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New wave and tidal turbine concept promises clean, affordable energy |
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 Sensor
Technology: Practically infinite reliability was the
defining requirement when researchers wanted to run a TorqSense
torque transducer under the sea as part of extensive trials of a
green energy turbine. Dependable, affordable energy from tidal
streams and ocean currents could soon be a reality, with scale
models of the innovative Evopod demonstrating the viability of
the oceans as an energy source. Developed by Tyne & Wear based
Oceanflow Energy, Evopod is a semi-submerged, floating, tethered
tidal energy capture device. It uses a simple but effective
mooring system that allows the free floating device to maintain
optimum heading into the tidal stream. Installed as an
individual device or as a tidal farm, the technology offers
clean, green energy. Evopod overcomes the key concerns that have
been expressed for tidal stream turbine installations. As a
floating tethered device it imposes minimal disturbance on
sensitive seabed ecosystems and its single turbine rotates at
such low speeds (10 – 20rpm) that they are likely to be a low
threat to marine wildlife. ... |
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+ Info |
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A
selection of recently
published
technical
articles & products:
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| Rotating Torque Measuring
Flanges from Manner now with 24 Bit Resolution |
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 Manner
Sensortelemetrie developed an extreme highly
resolving
torque measuring flange with 24 bit resolution
especial for friction power measuring. This tool is
enormous beneficial at this time when the friction power
losses in the automotive field are in the focus . Such a
measurement equipment is indispensable at the adding of
efficiency optimizing potential in a per mill range. The
torque values are already recorded in the measuring
flange with a high-precision measuring amplifier. They
are digitized in the rotor with 24 bit and subsequently
transferred to the measuring computer without any
further loss of accuracy. The digitized measuring values
can be transferred to the computer by CAN or Ethernet. A
reconversion into an analogue value does not make sense
due to the high exactness. Additional the temperature of
the testing object can be online recorded to correct the
zeropoint and gain changes at the measuring computer
that are conditioned by the environmental temperature
changes. The friction moments can be high-precision
measured without changing the measuring flange in spite
of operating load resistance. This saves testing period
and costs. The measuring flange can be used for the test
facility field as well as for the vehicle field. The
wide operating distance between rotor and stator and the
robust digital transmission method of sensor telemetry
has proved in practice. ... |
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+ Info |
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| Pay as you Sense |
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 Sensor
Technology: Equipment rentals are increasingly
helping companies overcome the hurdle of finding
investment capital to fund development and verification
projects. The current phase of the economic cycle,
recovery from a slowdown, is always difficult and
frustrating, as Mark Ingham of Sensor Technology
identifies: “Companies are seeing their markets improve,
but don’t have the reserves to finance all the
activities that will kickstart their sales. What money
there is has to be used carefully, which usually means
funding some projects but not others. As a result
opportunities have to be missed.” Typically projects may
include verification or reverification of a product
range to an international standard, development of a new
sized unit within a product range to address an emerging
market requirement, modification of a design or a whole
new development. “The devil is in the details:
enterprising companies can usually see new gaps in their
markets and envision a product to suit. But these need
to be tested and proven, and that often involves
acquiring sensors and test equipment.” Having survived
more than one downturn and recovery, Sensor Technology
already has a rental option in place for its TorqSense
range of torque sensors. ... |
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+ Info |
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| TT03C – Digital Cap Torque Tester |
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 Cooper
Instruments & Systems: SeriesTT03C digital cap
torque gauges are quick and economical solutions for
basic handheld cap torque testing. These portable
instruments eliminate the need to secure closures in a
fixture or more elaborate testing system. A dedicated
remote torque sensor with Jacobs chuck is supplied with
a universal grip for caps from 0.65 - 1.55 in (16.5 -
39.4 mm) diameter (Series TT03C gauges consist of a
Series TT03 torque gauge and G1053 cap grip). Series
TT03C records both application and removal torque values
(clockwise and counter-clockwise directions), and is
available in three capacities from 12 to 100 lbFin (135
to 1150 Ncm). Series TT03C features a sampling rate of
2,000 Hz, producing accurate results under a wide range
of test conditions. A backlit graphic LCD displays large
characters, and a menu is available to access the
gauges’ features and configurable parameters. USB output
is provided for data collection purposes. ... |
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+ Info |
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| Flexible and Maintenance-free, Precise and
Digital: The new KiTorq Torque Measuring Flange from Kistler for
Testing Motors, Engines, Pumps and Transmissions |
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 Kistler
Group: By designing a measuring unit and an
evaluation unit as separate assemblies, and introducing
modular combinations achieving extremely high measuring
accuracy, the new KiTorq system torque measuring flange
from Kistler allows test rig owners previously unknown
flexibility in measuring torque. The system consists of
a measuring unit (rotor) Type 4550A... and an evaluation
unit (stator) Type 4541A… . As the rotor has a standard
configuration to ISO 7646 for transmission flanges, it
is compatible with all common test environments and
offers a choice of measuring range: 500, 1 000, 2 000 or
3 000 N∙m. Rotors of different sizes can be combined
with the same ring-less stator for particular easy
installation. They can also be used to test different
assemblies without having to completely modify the test
unit. The open stator design makes installation quicker
while protecting against damage, and facilitates visual
inspection during testing. ... |
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+ Info |
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More technical articles & products to this topic:
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Find
all manufacturers and suppliers of
torque sensors
torque measurement devices |
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Reliably measuring large torques in wind power plants |
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HBM:
Wind power plants, which are
increasingly being developed in the
offshore wind park sector, are
continuously growing in size and power.
This poses new challenges to measurement
technology. The expansion of wind energy
is playing an important role in the
current energy policy trend towards
regenerative energies. A typical example
is the measurement of torques in a wind
power plant. These measurements are used
to optimize the wind power plants and so
increase efficiency. Even efficiency
increases of just a few percent can
result in savings worth millions. As the
rotor of a wind power plant rotates
relatively slowly, a gear increases the
speed to appropriate values for the
downstream generator which then converts
the wind energy into electrical energy.
This means that the torque is extremely
high, especially on the rotor side.
Depending on the plant and wind
conditions, torques in the range of
several MN•m can occur. The measurement
technology specialist HBM supplies
customized torque transducers for this
sector with rotating or non-rotating
designs and a nominal torque of 1.5
MN•m. Design proposals for even higher
torques ... |
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Find
all manufacturers and suppliers of
torque sensors
torque measurement devices |
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TorqSense transducers help to guarantee valve actuator performance |
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Sensor
Technology: Rotork Controls has established a global
reputation for robust and reliable valve actuators, operating in
some of the world’s most demanding and critical applications.
Thorough testing of the motors used in the actuators is one of
the keys to this assured performance, with TorqSense transducers
from Sensor Technology playing a vital role in the test process.
Rotork is the world’s leading manufacturer of electric,
pneumatic and hydraulic valve actuators and associated control
systems, valve gearboxes and valve accessories. The company’s
electric valve actuator division offers an electrical solution
to industrial valve control and actuation applications of
virtually any size, description and complexity. Its capabilities
encompass actuators and control systems for new plants, plant
extensions and upgrades, together with life-of-plant support.
The division’s unrivalled range of products offers a robust and
economic solution for every valve duty and operating
environment. ... |
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Compact Torque Measuring Flange with Integrated Overload Protection |
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Manner
Sensortelemetrie has developed a
special, compact measuring flange with an
integrated overload protection mechanism for
drive trains. The overload protection allows an
overload factor of 100. The destruction of the
torque sensor during overload can therefore be
prevented. This risk arises during a sudden
blocking of the drive train (bearing damage).
Another application case is the measurement of
the smallest torque on an over-sized drive
train. High breakaway torques are therefore no
longer a problem. The overload protection also
serves as fitting protection, particularly for
smaller torque sensors (T <20 Nm). Here, the
sensor can already be damaged by the tightening
force of the screws. The measuring flanges
operate without bearings. The system accuracy
could be improved to 0.05% for hysteresis and
linearity through introduction of the digital
sensor telemetry. The torque values are already
digitalised in the rotor with 16 Bit. The speed
signal is also recorded without contact using a
gear rim and HALL sensor. This robust design has
already proven itself in practice. Ethernet,
USB-bus and CAN-bus for connection to control
are also available. In addition, the classical
analogue output signal is also on offer.
... |
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HBM answers your questions about torque measurement technology |
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HBM:
The measurand of torque has become vastly more
significant in recent years. Without torque and
rotational speed measurement, there is no reduction in
CO2, optimization, development and quality assurance of
machines, vehicle parts and other rotating components.
The mechanical performance derived from this leads to
improved efficiency and thus to reduced consumption.
Ultimately, this protects the environment, and is in all
our interests. HBM is the global market leader in torque
measurement, and has more than sixty years of experience
in measuring mechanical quantities. The company has
spared neither trouble nor expense in making this wealth
of experience accessible to an extended circle of users.
Benefit from HBM’s experience and expertise in a
technical reference book, compiled for you by Rainer
Schicker and Georg Wegener. This is available from the
HBM Website in German, English and Italian. The
reference book “Measuring Torque Correctly” is clearly
laid out and easily understood, and gives an overview of
all the essential aspects of using torque transducers.
... |
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The new digital torque flange for high torques with an improved
measuring body design |
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HBM: The requirements for
torque measurement in test benches have kept increasing in
recent years. In roller, diesel engine or transmission test
benches, for example, ever-higher torques have to be measured
extremely accurately. The measurement technology specialist HBM
is putting the T40FM torque flange onto the market. This is a
successor to the T10FM series, and can measure torques up to 80
kNm without difficulty. The torque flange has a revised rotor
design and new digital rotor and stator electronics. This
combination ensures greater precision and reproducibility in the
test benches. The improved measuring body design results in
greater stiffness in all directions. At the same time, it has
been possible to reduce the mass, and thus the mass moment of
inertia. This improved radial stiffness leads to good bending
vibration properties. .. |
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LXT 971 Rotating Shaft Torque Transducers |
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Cooper
Instruments & Systems: The LXT 971
torque transducer operates on the principle of
magnetoelasticity with a range of 2.5 Nm to 500 Nm. The
sensors output signal is caused by a change in the
magnetic field created by an applied torque on the
sensor’s shaft. Non-contact detectors, in close
proximity to the shaft, detect changes in the magnetic
field and provide an electrical signal proportional to
the torque. The electronics in the sensor provide signal
conditioning suitable for use in industrial and process
applications. The zero output is 2.5v. The output span
can range from 10mv/v to 2.5v in either ... |
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Find
all manufacturers and suppliers of
torque sensors
torque measurement devices |
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High-precision torque calibration with a reference transducer |
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HBM:
The importance of accurate torque measurement in test
bench applications, for example, keeps increasing. This
means a corresponding increase in the significance of
calibration for the torque transducers used in these
test benches. An addition to the proven TB2 torque
reference transducer family of products now makes it
possible to obtain accurate, traceable measurements much
more quickly, as measurement is direct, unlike the
familiar lever-arm calibration, where weights have to be
put on and taken off by hand. The type TB2 torque
reference transducer from the measurement specialists
HBM allows traceability to the national standards, and
therefore totally safe and reliable calibration of the
torque measurand. It can now also come with 100 Nm and
200 Nm measuring ranges. The reference transducer is
suitable for non-rotational use ... |
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The Tailor-made Measuring Shaft |
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There
is rarely much room spare in modern machines, due to
designs that optimise the use of space. Thus the
traditional method of attaching instrumentation to the
machine elements is not always possible. MANNER
Sensortelemetrie offers high-precision
measuring technology for such applications. The flexible
circuit board and the rotor antenna unit, with a height
of only 3 mm, can be virtually wrapped around the shaft.
The measuring technology is also well-protected below an
oil-proof and waterproof encapsulation. Regardless of
whether shafts or flanges, sleeves or shaft couplings,
every component can become an intelligent measurement
object. This way, the original parts are used and no
effort is required to design special sensors. The
measuring range and the zero point can be remotely
adjusted online with a 16-bit resolution (automatic
zeroing).
Torques,
strains,
forces,
temperatures, and
vibrations can be recorded within an ambient
temperature range of 25°C to 160°C. ... |
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Introducing FUTEK’s Rotary Torque Solutions |
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FUTEK
holds a firm commitment to not only providing solutions, but to
also sharing the knowledge behind those solutions. Over the past
few months, we have been compiling a new online section
dedicated to sharing our expertise with our customers - we call
it FUTEK Solutions. And this month, we are releasing our Rotary
Torque Sensor Solution Section. The Rotary Torque Online Section
showcases all the necessary details our customers should be
aware of when selecting a rotary torque sensor for their unique
applications. From features to models to instruments and
accessories, we have outlined all the essentials about rotary
torques, making this information accessible at the click of your
mouse. This support document displays the design features of the
rotary family – from rotations per minute to material
construction to the levels of accuracy, even the option of
working with models with built-in encoders. If you view the
sensor models, all capacities, RPM maximums and product
descriptions are visible. The web section also allows our
customers to view what instruments and accessories are
compatible with each model. Notably, our USB technology is even
available with certain models. ... |
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Bourns Announces Combined Torque and Angle Sensor for Electric Power
Assisted Steering Applications (EPAS) |
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Bourns, Inc., a leading manufacturer and
supplier of electronic components, today announced a new
combined torque and angle sensor designed for Electric Power
Assisted Steering Applications (EPAS) and other automotive
systems. The new combined sensor provides torque and steering
angle measurement in a single package, replacing two discrete
sensors for significant space and cost savings. Based on Bourns’
Hall Effect (HE) non-clockspring torque sensor technology, the
combined sensor uses driver input to measure the steering torque
while simultaneously converting the rotation speed and direction
of the steering wheel. The torque portion of the sensor is
designed specifically for EPAS, and the steering angle signal
can be used in a variety of automotive systems including
Electronic Stability Control (ESC), Advanced Front Lighting
Systems (AFLS), Navigation, and Assisted Parking Systems.
“Bourns has more than 14 years experience in delivering proven
steering angle and torque sensors, and is committed to continued
innovation,” said Johneric Leach, product line manager for
steering and vehicle stability sensors at Bourns. “Using this
experience to combine technologies into a single functional
package demonstrates our innovation, and Bourns has made a
significant investment in extensive trials and testing to ensure
this product meets customer expectations and next-generation
automotive requirements.” ... |
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Tidal Turbine to light the Thames |
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Sensor
Technology: A small proportion of the Thames is to be
illuminated using power generated by the flow of the river
itself, as Kingston University tests prototypes of a new
hydroelectric turbine design. The turbine will sit on a pontoon
and will provide a floating test and measurement laboratory. On
this will be an array of sensors and monitors, including a
TorqSense the wireless torque sensor from Sensor Technology Ltd.
"To say that this is a harsh environment for laboratory
equipment is a bit of an understatement," says Rod Bromfield,
Senior Lecturer, of the Faculty of Engineering, Kingston
University. "We can only use robust kit with a proven industrial
pedigree." ... |
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Find
all manufacturers and suppliers of
torque sensors
torque measurement devices |
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Appropriate shaft coupling for torque flanges |
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In
order to securely and accurately record torques,
the metrology technology specialist HBM
is now also providing the appropriate shaft
coupling for their series T40 torque flanges.
The robust shaft coupling compensates for any
existing radial, axial or angle offset that may
arise when the torque flange is installed. The
shaft coupling is characterized by high
torsional stiffness and, at the same time, a low
mass moment of inertia. As the ROBA-DS shaft
coupling is the ideal match for the HBM torque
flange, the user can be sure that the torque is
correctly applied in the torque flange ... |
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Torque flange with ATEX approval |
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A
torque transducer integrated between drive and
machine, directly in the drive train, is suitable for
precisely determining the performance of a machine. Such
transducers are offered by the metrology technology
specialist HBM, for example with the
type T10FH torque flanges, which are available as
standard with nominal (rated) torques of up to 300 kNm.
In order to be able to use the transducer in potentially
explosive atmospheres, the electronics have been
appropriately modified and adapted. The special version
of the T10FH transducer is available with ATEX approval
ll 2G EEx d e q IIC T4 for nominal (rated) measuring
ranges up to 150 kNm. The design for Category II2G
therefore permits application in Zone 1. Data
transmission between rotor and stator is digital, so
that secure, error-free measured value acquisition and
transmission is possible even under difficult ambient
conditions, for example electromagnetic interference or
fluctuating ... |
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Manner's Rotary Torque Measuring Flange now with additional Axial Force
Measurement |
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The
company Manner Sensortelemetrie has
extended its
torque measurement flange range, especially
developed for the test rig environment, with a new
feature. The new rotary combination measurement flange
supports the simultaneous dynamic capture of torque and
axial force. Especially for clutch, drive shaft and test
rigs for tunnel-boring or deep-hole-boring machines the
simultaneous capture of dynamic axial forces is
indispensable. Its especially compact design also
facilitates the retrofitting of the measuring element in
existing test rigs. The flange operates, as accustomed,
without bearings and with wear-free contactless signal
transmission technology and is thus absolutely
maintenance-free. With the use of the tried and tested
digital sensor telemetry in the rotor, the highest
degree of system precision and of EMC environmental
resistance is achieved. The additional large range
between rotor and stator and the robust design with the
compact signal pickup ... |
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Interface Inc. Announces A2LA Accreditation For Torque Transducers |
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Interface Inc., a
recognized leader in
force measurement technology, is pleased to announce
that A2LA, The American Association for Laboratory
Accreditation, accredited Interface’s production,
calibration, and repair areas in accordance with
Standard ISO/IEC 17025:2005 General Requirements for the
Competence of Testing and Calibration Laboratories, for
a broad range of
torque transducers in addition to their previously
accredited precision force transducer program.
Interface’s scope of accreditation now includes torque
transducer measurement validation from 1 to 100K lb-in.
Interface Inc. was awarded accreditation for calibrating
precision force transducers / loadcells in 2002. The
latest addition of
torque sensors to this A2LA accreditation assures
Interfaces’ customers that their sensors will meet /or
exceed the precision requirements set forth by A2LA
standards, allowing customers to address rigorous
applications where exact measurements are needed. ... |
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High speed Motor testing solutions by MAGTROL |
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MAGTROL
is launching the new WB23 dynamometer able to measure
low torque motors (up to 80 mNm) with very high speed
(up to 100,000 rpm). The air bearing reaction torque
measurement allows high measuring accuracy of + / - 1%
full scale. The system integrates torque and speed
measurements as well as convection air cooling. It can
dissipate 300 watts short term (3 minutes) or 120 Watts
continuous. Connected to the DSP 6001 controller, it can
be used with the Labview based testing software M-TEST
5.0 offering easy configuration and data acquisition . A
removable protection guard guarantees full safety during
test. Next to this 1WB23, Magtrol is also launching the
new MEGA SPEED dynamometer dedicated to dental and
surgical tools able to run up to 300,000 min-1, in a
torque range of 5 to 50mNm. Both dynamometers complete a
range of performing solutions for high speed
applications. ... |
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Find
all manufacturers and suppliers of
torque sensors
torque measurement devices |
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Demand growing for non-contact torque measurement |
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Sensor
Technology: Diverse sectors of industry are
preparing to embrace Surface Acoustic Wave techniques
for non-contact torque measurement, and leading
developer Sensor Technology is gearing up to meet the
demand. The company has been developing the technology
from its research base in Banbury, Oxon, and is now
entering a new phase in its commercialisation programme
with its TorqSense SAW transducer. It already has a host
of successful applications in industry and academia and
is now road-mapping routes to broaden out this base into
other sectors. “We are planning this step very carefully
because we are aware that every opportunity carries some
greater or lesser degree of risk hidden within it,” says
Sensor Technology’s Marketing Manager Tony Ingham. “It
is very easy to founder due to your own over-enthusiasm
when you have a technology with such exciting prospects.
What we have to do is develop on several carefully
chosen fronts, make sure that we consolidate our
progress as we go and transfer new knowledge gained in
each field to all the others.” Sensor Technology is
being ... |
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Sub-Miniature, High Performance “In-Cell” Amplifier from LCM Systems |
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By
incorporating the second generation “in-cell” amplifier (ICA) from
LCM Systems, engineers can convert a strain gauge input to a voltage
or a current output. This high performance, sub-miniature amplifier can
be used for internal amplification of strain gauge based load cells,
pressure transducers or torque transducers. Available in six different
versions with a wide range of current and voltage outputs, this latest
amplifier with its robust construction has also been designed for quick
and easy installation. With a maximum height of only 7.6mm, a
standardised excitation of 5V DC and plated through holes for wire
connections, its versatility makes it suitable for a wide range of OEM
applications. Reverse polarity, short circuit protection and a fast
calibration procedure are just some of the other features on this CE
approved range of amplifiers. According to Steve Sargeant, Managing
Director, LCM Systems is ... |
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Novel sensors aid tidal turbine development |
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Non-contact
torque sensors from Sensor Technology are
playing a key role in the development of commercial-scale
in-stream tidal turbines produced by Irish company, OpenHydro.
The company is using these novel sensors, which are based on
surface acoustic wave (SAW) technology, to accurately measure
rotational speed and frictional forces in a simulator for the
turbine bearings, thereby allowing it to optimise the
performance and reliability of its innovative products.
OpenHydro is a technology company that designs and manufactures
marine turbines to generate renewable energy from tidal streams.
The company's vision is to deploy farms of tidal turbines under
the world's oceans, where they will dependably generate
electricity with no cost to the environment. This method of
producing electricity ... |
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2 Nm Torque Flange with overload protection |
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MAGTROL,
specialist in torque sensors, presents a new torque flange, the "TF
205". Its measurement range of 2 Nm extends the range of TF flange
torque sensor from 2 Nm to 200,000 Nm. Based on the strain gauges
technology, the signal transmission is performed through telemetry. The
new TF has an accuracy of 0.1%, an overload protection up 500% of rated
torque. His flat (41mm x Ř ext.75mm) and rigid design allows the
construction of compact measurement assembly without bearings providing
an easy implementation. The TF 205 is suitable for motor or engine test
beds, especially in the automotive area. Due to its overload protection,
it allows accurate measurement on a reduced scale, while providing high
starting torque due to rotational masses. An extension of the range to 5
Nm and 10 Nm torque sensor is coming soon. ... |
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Kistler's Lorch Production Site
Commissions New Calibration Unit for Torque Sensors and Torque Systems |
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Kistler
has commissioned an additional calibration unit for torque sensors on
its Lorch production site. Acceptance and accreditation by the DAkkS
(formerly DKD) in December 2009 means Kistler's Center of Excellence for
Torque Sensors now has two high-precision calibration units approved by
this German accreditation body. The new system for sensors with a torque
rating of up to 5 000 N•m is a machine with a sliding weight, automated
calibration sequence and automatic disturbance variable compensation.
New software now allows automated adjustment and calibration of torque
sensors. The very low best measurement capability of 100 ppm is a sound
basis for extremely accurate development and calibration of torque
sensors. Outside the "Physikalisch-Technische Bundesanstalt" in
Brunswick there are only two other calibration units in Germany with
similar characteristics and best measurement capabilities for this type
of measurement. As the new unit likewise determines the best measurement
capability of the calibrated sensors, in future Kistler can also issue
its customers calibration certificates that are more detailed in this
respect. These best measurement capabilities ... |
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Find
all manufacturers and suppliers of
torque sensors
torque measurement devices |
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Multichannel Charge Amplifier Enhances Precision and Flexibility in
Laboratory Applications |
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Kistler:
Extremely accurate measurement of physical quantities in laboratory
applications requires precise signal amplification. The new, modular
high-end multichannel charge amplifier Type 5080A… from Kistler is
designed to cater to a whole variety of tasks with these requirements.
For example, it amplifies the signals from piezoelectric sensors for
multicomponent force measurement. This makes this innovative amplifier
ideal for applications such as recording the minute forces encountered
in micromachining. As the successor to charge amplifier Types 5017 and
5019, new Type 5080A… is intended for mounting in 19" racks. Its modular
design allows expansion to eight amplifier modules at any time. It can
accommodate both charge modules for piezoelectric sensors and dual-mode
modules with charge/Piezotron® input. This enables acquisition of not
only force signals but also signals from sensors measuring acceleration,
pressure or torque sensors. This possibility of combining charge and
dual-model modules in the rack permits recording of, for instance, force
and acceleration signals with the same unit. ... |
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DR2554: Torque sensor |
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SCAIME: This serie of torquemeter allows to
carry out torque measurements with a speed up to 13 000 tr/mn
and requires a small space (for ex: 105 mm for a torquemeter
with a range of 1 000 Nm). This coupling allows to compensate
the misalignment of the different shafts. Main features: *
coupling integrated to the sensor, * mechanically contacless
(without bearing), * electrically contactless (digital signal
transmission), * maintenance free (due to the contactless
technology) ... |
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Sensor Technology provides the key to
learning |
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Sensor Technology Ltd: The electrical machines laboratory at the
Dublin Institute of Technology (DIT) has greatly increased in its
effectiveness as a teaching resource since TorqSense non-contact torque
sensors from Sensor Technology have been fitted to five machine sets.
The new sensors replace an existing system of machine monitoring that
had proved inaccurate. To provide maximum flexibility, the demonstration
equipment in the DIT machines laboratory employs modular construction.
This means, for example, that experiments with both AC and DC machines
can be carried out on the same test bed, as whichever machine is needed
is simply clamped into place. Whatever the configuration of the
equipment, however, the experiments and demonstrations performed in the
laboratory require the monitoring and collection of a number of key
operating parameters, including torque, speed and ... |
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Talking Sense about Technology Transfer |
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Sensor
Technology Ltd: Technology transfer may prove one of the cornerstone
engines for growth as the UK emerges from recession over the coming
months. Sensor Technology in Oxon are virtually addicted to the habit,
so we asked their Tony Ingham how it has shaped the company’s
development and what the future holds. Wireless became one of the
buzzwords of the late Noughties, and ‘wireless’ got our grandparents’
generation excited too in the 1940s. But between those periods the word
was not much used – except at Sensor Technology around the turn of the
Millennium. “We’d identified a way to measure the torque in a rotating
shaft without maintaining physical contact – well, the theory of how to
do it!” says Tony Ingham. “Doing away with the traditional slip rings
would be a big advantage in many potential applications, and we kept
thinking of more and more reasons to develop the concept.” Sensor
Technology had been ... |
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Manner's torque measuring flange now with
Ethernet connection |
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Manner
Sensortelemetrie has now widened its range of torque measuring
flanges, developed specifically for test bench technology. The focus is
now on expanding network connectivity. Ethernet connection (TCP/IP) is
now available alongside existing USB and CAN network links. This means
that the torque sensor can be smoothly integrated into existing TCP/IP
networks. Ethernet technology offers huge advantages, particularly with
larger test benches. The fibre optic cables generally available for
Ethernet use permit transmission paths up to several kilometres long, as
well as transmission of measurements that is completely free of
interference. The rotary speed data collected using the integrated speed
measurement system is also transmitted. The classic data recording
interface is no longer needed, which cuts costs greatly. The measuring
flange, together with a PC, represents a practically "Plug and Play"
data acquisition system. ... |
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Find
all manufacturers and suppliers of
torque sensors
torque measurement devices |
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PCB Load & Torque, Inc. Release Technical
Papers: Torque Sensors and Load Cells, An Overview of their Design and
Application |
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Kenneth Watkins, Application Engineer for PCB Load & Torque, Inc.,
has recently released the following technical papers: Torque Sensors –
An Overview of their Design and Application reviews the basic technology
of the strain gage torque sensors including structure designs, typical
applications for reaction and rotary sensors and installation
discussions. This paper includes an application questionnaire to help
the reader determine the advantages of each type. Load Cells – An
Overview of their Design and Application reviews the basic technology of
the strain gage load cell including design, model classifications, and
performance specifications. This paper includes typical application
examples and a questionnaire to help determine specific requirements ... |
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RS Technologies Introduces LabMaster
Portable |
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RS
Technologies, a division of PCB Load & Torque, Inc.,
introduces their LabMaster Portable Model 3210 for joint analysis
torque-tension testing. Manufacturers who use threaded fasteners to
assemble their products can benefit by using this system to verify the
performance of their fasteners. The LabMaster Portable is designed to
test threaded fasteners and evaluate fastener coatings, lubrication,
finish, and plating. The system will also analyze bolted joints and
certify power tools. Combined with a torque-angle sensor and a thread
torque-fastener tension research head the following measurements can be
made: input torque, angle of fastener rotation, clamp load, and thread
torque. Specific calculations can then be performed, including: thread
friction torque, underhead friction torque, torque tension coefficient
(T = KDF), thread friction coefficient, and underhead friction
coefficient ... |
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Reasonably Priced Basic Line Torque Sensor with Contactfree Signal
Transmission |
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New
Type 4520A... Basic Line provides a cost-effective torque sensor based
upon strain gage technology. It extends Kistler's wide spectrum
of torque sensors for tasks requiring efficient torque measurement.
Sensor Type 4520A... is suitable for use in production, quality control
and the laboratory. Transmission of power and data without contact makes
the sensor robust and maintenance-free in continuous use. It measures
torques in accuracy class 0,5 at speeds up to 10 000 revolutions per
minute. Type 4520A... is offered with rated torques of
1/2/5/10/20/50/100/200/500/1 000 N•m and, in addition to the ±10 V
torque signal, features a speed output with 60 pulses/rev. (TTL) as
standard plus an externally switchable 100 % control signal. Evaluation
instrument CoMo Torque (Type 4700A...) and PC software SensorTool (Type
4706A) are available for parameter configuration ... |
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World’s best vaccum seals tested but not
touched |
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Sensor
Technology Ltd: TorqSense, a non-contact digital torque monitoring
system that could guarantee an infinite lightness of touch has proven to
be the only way to test the seals of super high performance vacuum
systems. The ultimate fields of precision manufacture, such as
electronics, biophysics and thin film deposition where tolerances are
measured in atoms, are often conducted in hard vacuum to remove airborne
contaminants and avoid the performance reducing effects of tiny air
movements. However the vast majority of vacuum chamber designs require
seals for rotary drive shafts (called rotary feedthroughs) and
‘feedthroughs’ for the passage of materials, components, tools and
finished products. In high vacuum applications conventional seals are
unlikely to be able to achieve the performance specifications required,
so magnetic fluid seals are used. ... |
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PCB Load & Torque – Excellence in
Calibration |
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PCB Load & Torque, Inc. – a PCB Group Company, provides torque
and force calibration services at its A2LA Accredited Calibration
Laboratory in Farmington Hills, Michigan. This calibration service is a
necessary requirement for facilities seeking to obtain or maintain ISO
9001:2000 certification. Items of measuring and testing equipment that
are calibrated with the scope of accreditation are rotary torque,
reaction torque and force measuring transducers. The commercial
calibration capabilities of PCB Load & Torque, Inc. are defined
according to the Scope of Accreditation to ISO/IEC 17025-2005 and AJNSI/NCSL
Z540-1-1994. PCB® Load & Torque, Inc., an ISO 9001 registered
company, designs and manufactures high quality, precision load cells,
wheel force transducers, torque transducers, electronic hand torque
wrenches, OEM transducers, and fastener torque-tension test systems! We
offer A2LA Accredited Calibration Services for torque, force, and
related instrumentation! ... |
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Find
all manufacturers and suppliers of
torque sensors
torque measurement devices |
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PCB Load & Torque Universal Single
Channel Telemetry System |
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PCB
Load & Torque, Inc., introduces their new Series 8179 Universal
Single Channel Telemetry Systems. These systems provide a simple,
accurate method of transmitting strain torque, thermocouple or voltage
signals on rotating or moving machinery while operating in a completely
contactless mode. Power is transferred inductively and the signal is RF-transferred
between the moving and static component – no brushes or wires required.
This method guarantees an absolute maintenance-free continuous operation
and accurate transmission of measured data. The Universal Single Channel
Telemetry System is compact in size and light weight which allows for
quick and easy installations in areas where space is at a premium
without affecting the dynamic properties of the shaft. The universal
receiving electronics allows the user to power and condition strain
gage, thermocouple, or voltage sensors from a single module ... |
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In-Line Amplifier for DC Strain Gage Transducers |
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The
new Series AP5201 In-Line Amplifier from Stellar Technology is a
low cost, easy-to-use, general purpose signal conditioner. This single
channel unit is ideal for DC-excited strain gage pressure transducers,
load cells, and torque transducers. AP5201 features an advanced analog
design which solves the problem of measurement inaccuracy caused by high
electromechanical noise. The AP5201 provides filtered analog output of
±5Vdc, ±10Vdc, or 4-20 mA, which is field-selectable by the user. Zero
and span adjustments are made through coarse rotary switches and
potentiometers. This in-line amplifier will accommodate a wide range of
full-bridge DC strain gage sensors with bridge resistance for 120 to 10K
Ohm. The AP5201 signal conditioner can be placed in-line and away from
high temperature, high humidity, or corrosive environments that the
transducer itself may be exposed to, thus protecting the electronics
from severe conditions and ensuring reliable performance. The AP5201
in-line amp is also useful when mated to miniature and subminiature load
cells or pressure transducers which are too small to ... |
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Mini-Mixer will be the torque of many
industries |
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Sensor
Technology Ltd: A torque sensor is helping analyse recipes’ mixing
properties in a project that could slash development costs in the food
and plastics industry and help nanotechnology advances in the
pharmaceuticals world. The research and development is being carried out
at the University of Bradford by Professor Hadj Benkreira and Dr Raj
Patel in collaboration with Dr Martin Gale, formerly of RAPRA Technology
(Shawbury) now Visiting Professor. They have been developing a miniature
mixer (5-25 grams batch) that incorporates a set of integral instruments
to monitor the properties of materials as they are being mixed. The
instruments work in real time during the mixing process and their output
is captured to a PC for subsequent analysis. Software is being written
so that the analysis can be performed simultaneously with the mixing and
perhaps even used to interactively control the mixer itself. One of the
key parameters to be measured is the torque of the mixing element, as
this will become constant once mixing is complete. This is measured by a
TorqSense non-contact sensor that offers ... |
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PCB Automotive Sensors Instrumented Steering Wheel System |
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PCB
Automotive Sensors, a division of PCB Piezotronics, introduces their
new Instrumented Steering Wheel System, Model 5610-10A, for vehicles
that enables true-to-life data measurements. The telemetry-based
steering wheel with supplied adaptors can be installed in the same
position as the OEM steering wheel to provide similar ergonomic feel and
driving dynamics. The unit is equipped with integrated sensors to
measure angle, angular rate, and torque. The vehicle’s active Electronic
Stability Program (ESP) is fully supported and not compromised. PCB®
Model 5610-10A units provide advanced integrated function keys, which
include autozero for both steering angle and steering torque, shunt
calibration, and function lock. The four integral switches located on
the steering wheel within thumbs reach allow the unit user-programmable
controlling options. Equipped with an integrated inductive power supply,
Model 5610-10A Instrumented Steering Wheel Systems provide continuous
running wireless operation. ... |
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Regen drive turns laundry green |
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Sensor
Technology Ltd: High performance torque measurement is helping to
improve the energy efficiency of domestic washing machines, enabling
consumers to make greener purchase decisions. The Eco Rating stickers
that provide potential buyers with a clear assessment of white goods’
environmental performance now play a major role in retail sales.
Manufactures want to achieve the best classification possible, so are
redesigning their machines to reduce power consumption. Technical
Solution of Stoke-on-Trent began looking at the issue and came up with
several initiatives that addressed different aspects of the situation.
One idea involved technology transfer from other fields of engineering.
Technical Director Andrew Stephen explains: “Washing machines energy is
delivered through their main drive motor and we reckoned that there may
be some savings using sophisticated motor control.” ... |
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Find
all manufacturers and suppliers of
torque sensors
torque measurement devices |
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The "Allround" torque transducer T40 –
Now with rated torques of 200 N•m to 10 kN•m |
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The
torque flange T40 from HBM, the allrounder for measuring torque,
even under difficult ambient conditions, is now available with a new
rated measuring range from 200 N•m onwards. This means that rated
torques of 200 N•m, 500 N•m, 1 kN•m, 2 kN•m, 3 kN•m, 5 kN•m and 10kN•m
are now available. The electrical configuration is identical throughout
the series. This allows the torque transducer to be used without great
modifications for various applications - from friction performance
measurements, applications for engine or gear test benches to chassis
test benches. Numerous torque measurement applications in test benches
and in process monitoring can be completely covered with this complete
series. Due to the compact design, the torque flange can be very easily
integrated into a test bench and is insensitive to parasitic loads. This
enables direct mounting of machine elements - additional joint shafts or
couplings are not necessary. ... |
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Rotary Torque Sensors For Aircraft
Turbine Engine Air & Electric Starters from PCB Piezotronics, Inc. |
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PCB
Aerospace & Defense – a division of PCB Piezotronics, Inc.,
announces new Series 4115K Rotary Torque Transducer. These new
transducers use non-contact, rotary transformers for sending excitation
voltage to, and receiving measurement signals from, the strain gage
instrumented rotating sensor element. Their unique flange and splined
shaft design, which conforms to AND 10262 & 20002, makes these units
ideal for use in torque studies on aircraft turbine engine air starters,
cantilevered aerospace hydraulic motors and pumps. Other applications
include automotive applications such as dynamometers, drive shafts,
transmissions, fans, and electric motors. In addition to the torque
output signal, an optional pickup provides an output proportional to
speed and an optional K-type thermal couple to monitor internal bearing
temperature. These units feature high torsional stiffness and low
rotating inertia. Models are available with several measurement ranges
and speeds up to 27,000 rpm. ... |
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Sensor hones in on sharp operators |
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Sensor
Technology Ltd: Risk is being driven out of the use of heavy duty
diamond cutting tools thanks to a Euro 800,000 EU-backed research
programme at Greenwich University in London, to determine the true
operating characteristics of such equipment. At the heart of this vital
work is a high tech torque sensor from Sensor Technology in Banbury,
which proved to be the only effective way of measuring the true toque in
the rotating saw blades and drill bits. Previous research has simply
estimated the torque by calculation from the drive motors’ current
requirements and consumption. This was known to be highly inaccurate,
because every motor has its own unique signature of characteristics,
which can have a significant effect on actual performance in highly
demanding applications, such as drilling 1000mm bore holes through
reinforced concrete, or sawing through the barnacle encrusted steel of
sub-sea structures. In order to accurately profile the performance of
each tool, it is necessary to measure the torque of the blade or cutting
tip as it rotates; and for this a non-contact sensor is required. The
Greenwich team considered several options around which to build their
test rig, and the clear winner was the TorqSense unit from Sensor
Technology. This is a transducer that requires no physical contact
between the sensor mounted on the high speed tool and its adjacent
static pick-up, instead using Rayleigh Waves or surface acoustic waves
(SAWs) ... |
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Testing time for business jet |
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Sensor
Technology Ltd: Development and qualification testing of three flap
system actuators for the eagerly awaited new Falcon 7X business jet is
being performed on a test rig designed and built by Comar Engineering in
Wolverhampton and incorporating an innovative non-contact torque
transducer. The whole Falcon 7X project is packed with innovation, from
the virtual design techniques used in the early stages that compressed
the development time to a level totally unexpected in the aviation
industry, through to the choice of electric actuators rather than
hydraulic for driving the flight control surfaces. It will be the
world’s first fly-by-wire business jet, offering the pilots benefits
previously only enjoyed in fighter jets such as precise flight path
control and automatic trim adjustments during configuration changes.
Carrying up to 19 passengers it is a long range aircraft that can
operate from modest airfield; as such it could help to change the face
of business travel in the coming decades. Comar built a test rig
incorporating 22Nm and 200Nm TorqSense transducers from Sensor
Technology in Bicester for the development and qualification testing of
three flap system actuators, including Production Acceptance Tests,
Performance, Endurance, Mechanical Fatigue and Mechanical Strength tests ... |
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Fire sprinkler systems get safety torque |
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Sensor
Technology Ltd: Replacing a torque meter with a torque sensor has
revolutionised the validating process for bespoke Fireset sprinkler
systems built by Grundfos Pumps Ltd. in Leighton Buzzard. Grundfos
designs and builds a vast range of electric and diesel driven Firesets
that form the heart of any sprinkler system. These Firesets have
sophisticated control systems that activate automatically when the
presence of a fire is detected. They also have to meet the requirements
of demanding Loss Prevention Certification Board to fire protection of
building and their occupants. Huw Lloyd, Engineering Manager for
Grundfos Pumps Ltd. explains: “Even a moderate sized system can have
many of the sprinklers heads. Typically just a few of these will go off
to contain a small local fire, but the Fireset has to be able to deliver
a predetermined pressure range to every head, even if ... |
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Find
all manufacturers and suppliers of
torque sensors
torque measurement devices |
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Bourns Automotive Product
Capabilities Video |
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Bourns, Inc., a leading manufacturer and supplier of electronic
components, today announced that it has posted a new video of the
company's Automotive Division capabilities on its website,
www.bourns.com. The Bourns Automotive Division develops and designs a
wide range of customized automotive position, speed and torque sensors
and fuel cards. Providing worldwide customer support, these products are
manufactured in TS16949 certified facilities throughout Europe, North
America and Asia. "The video illustrates how customers can benefit from
Bourns extensive engineering and localized support," said Jeff Pyle,
vice president and general manager of Bourns Automotive Division.
"Customers will be able to view Bourns R&D and design group, prototype
and sample shop, laboratories and of particular interest, our lacquer
production. This core competency is responsible for the development of
reliable, long life potentiometers, for which Bourns is renowned ... |
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Popular digital torque transducer targets
lower torques |
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HBM
has extended its T12 series of digital torque transducers with models
for the lower measuring ranges of 100 Nm and 200 Nm. This means that,
for example, measuring friction performance can benefit from the high
accuracy and dynamic performance of the T12. Typical application areas
for the digital torque transducers are mainly in the automotive industry
for engine, gear or chassis test benches. The T12 also delivers precise
and secure measurement results when testing electric motors, pumps and
generators. The torque transducers can also be used, depending on size,
for torques of up to 18,000 rpm. The accuracy class is 0.03 over the
entire measuring frequency range of 0 Hz to 6 kHz. Data transmission
between the rotor and stator is implemented with the T12 dialog. This
enables secure and error-free measured value acquisition and
transmission, even under difficult ambient conditions, for example,
electromagnetic interference or fluctuating temperatures. Digitalization
is implemented with a high resolution of 19 Bit. ... |
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FUTEK Internally Amplified Rotary Torque Sensor |
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FUTEK
Advanced Sensor Technology, Inc. (FUTEK) introduces an Internally
Amplified Rotary Torque Sensor. The TRS605 Rotary Torque Sensor with non
contact shaft to shaft has signal transmission, integral measurement
electronics and a high level of interference immunity. The sensor is a
non-contact (slip-ring-free) rotary torque sensor and is made from a
compact design and size with rotational speeds of up to 7,000 RPM. This
particular torque sensor uses inductance for power and output signals.
An advantage to this slip-ring-free Torque sensor is less friction
during applications enabling a higher RPM. FUTEK’s non-contact shaft to
shaft Rotary Torque Sensor is available in a wide capacity ranging from
9 in-lb (1 N-m), to 8,851 in-lb (1000 N-m) with a +/- 5VDC Output. The
torque sensor is built with an internal shunt to simulate 5VDC and 11-26
VDC excitation. The TRS605 also comes with an optical Encoder with 360
pulses per revolution and has a leading and trailing pulse to determine
rotational direction. Other specs include nonlinearity to 0.2%, CE
Compliant, Feathered keyways to DIN 6885 standards and bonded foil
strain gauge technology ... |
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The all-rounder for measuring torque at
an optimal price – the T40 torque flange with increased measurement
ranges |
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The
all-rounder for measuring torque – at an optimal price – the T40 torque
flange from HBM is now available with two new nominal (rated)
torques of 5 kN•m and 10 kN•m. The T40 measurement flange series
therefore now covers the nominal torque ranges from 500 N•m to 10 kN•m
and can be used for practically all test bench applications. The compact
design of the T40 simplifies integration in a test bench. The torque
flange is extremely robust and copes with very large impact and
vibration loads. As per EN 60068-2-6, the vibrational stress was tested
in all three spatial directions. The T40 had to withstand accelerations
of up to 20 g for two and a half hours in the frequency range 10 Hz to 2
kHz. Data transmission between rotor and stator is digital in the T40,
so that secure, error-free measured value acquisition and transmission
is possible even under difficult ambient conditions, for example
electromagnetic interference or fluctuating temperatures. In addition,
the measurement flange does not use slip rings or bearings and is
therefore totally maintenance and wear-free. This results overall in
very high reliability that leads to significantly reduced test bench
down times. The measured torque can be output either via a voltage
output or a frequency output. The interface module TIM 40 can be used to
supplement the torque flange with even more interfaces. This provides
the user ... |
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Extended Testing of Landing Flap Gearbox
with CoMo Torque Evaluation System |
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Kistler:
Aircraft flaps take the form of extendable extensions on the trailing
edges of the wings. During the approach they allow the lift necessary to
make it possible to reduce flying speed for landing. Liebherr-Aerospace
also manufactures flight control, actuation, hydraulic and a variety of
other systems for use in business jets, feeder aircraft, wide-bodied
civil aircraft, helicopters and military aircraft. Special gearboxes
with differential output drives are used in flap actuation components.
To enable them to meet stringent service life and wear requirements
these gearboxes have to be tested on a special stand, with drive and
load machines applying specific load profiles to simulate realistic flap
movements. To enable reliability assessment the input torque is measured
as a function of speed with a Kistler sensor Type 4503A… . Incorporation
of the speed measuring system into the sensor allows a compact, clearly
arranged configuration of the drive train in the test bay. The CoMo
Torque Type 4700A… evaluation unit can be used to display the
characteristic measurands provided by the bay. It supplies the torque
measuring sensor with power and receives from this sensor its measurands
of torque and speed ... |
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Find
all manufacturers and suppliers of
torque sensors
torque measurement devices |
|
|
Compact high precision Torque Measuring
Sensor with integrated Tachometer for Tractor Applications |
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The
company Manner has developed a new high-precision torque
measuring sensor for torque and power output monitoring at the power
take-off shaft (PTO) in agricultural vehicles. The sensor is
particularly compact and fits directly onto the PTO. It has the degree
of protection IP65 and is completely maintenance-free. The stator is
mounted on the shaft and is secured against rotation by means of a
chain. In addition to measuring torque levels up to 5 kNm, the system
also provides high-resolution speed monitoring using 180 pulses per
revolution. The digital telemetric transmission technology guarantees
100 percent interference-free transmission of the measuring signal.
Characteristic of the strain gauge based sensor is its high accuracy
down to 0.1% of the measuring range, its extremely low temperature drift
in the range -35 to +125°C as well as its compact construction (length =
50 mm) ... |
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"Process Measuring Technology and
Automation", New Catalog Displays Expanded Product Range |
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The
product range of sensors, systems and accessories and also the areas in
which force and torque measurement are applied in assembly, joining and
testing technology is presented by Kistler in its revised and
expanded product catalog "Process Measuring Technology and Automation".
This catalog contains practical examples with mounting drawings,
measuring chains and analyses showing the measurement of forces and
torques in joining, mounting and testing processes. This includes the
use of force sensors during joining, the functional control of medical
equipment, monitoring of the steering column mounting process, the
testing of ignition and pressure switches as well as the testing of
transmissions using torque sensors and fitting elastomer bushings in
chassis ... |
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Non-contact torque sensor now mounts in
moments |
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Sensor
Technology Ltd: The latest model of TorqSense, the non-contact
digital torque measuring system, incorporates an integral sprocket or
pulley, allowing easy fit-and-forget mounting in a vast range of plant
and machinery such as drum mixers, generators, pump, dynamometers and
conveyor drives. Earlier models of TorqSense provided an in-line shaft
for connection to the equipment under test. While these are suitable for
many situations, sometimes mean a degree of engineering was necessary to
mount the unit. This prompted torque system manufacturers Sensor
Technology, of Banbury, to develop this new user-friendly series of
models. The new RWT 350/360 TorqSense is suitable for virtually any
plant driven by a belt or chain drive, particularly those where space is
limited or access restricted. The ease of fitting is also likely to be
of interest for jobs where it is essential to minimise downtime, such as
in continuous process plant. “Belt and chain drives naturally have a
high radial load, which has to be accounted for when mounting a standard
TorqSense,” explains Tony Ingham of Sensor Technology. ... |
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New torque sensor will revolutionise
machine control |
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Machine
designers have been presented with a significant new technology for
measuring power in drive shafts and other rotating machine elements,
following the launch of the RWT310/320 series of TorqSense Rotary Torque
Sensors by developers Sensor Technology Ltd. Unlike traditional
slip ring transducers, the RWT units make use of a simple non-contact
measurement technique of a radio frequency (RF) couple for power and
signal communication. This means that the units are mechanically
straightforward and as such they stand to completely redefine the
expectations of machine builders and control engineers, who to date have
had to put considerable time and expense into obtaining the accurate
torque readings essential for accurate machine control and production
monitoring. They feature integral electronics with outputs for torque,
speed, power and angle. The RWT310 provides analog outputs and the
RWT320 both analog and digital outputs, which are directly compatible
with PC Interfaces such as serial and USB, being user programmable for
signal levels. Other innovative features include built-in peak torque
sampling, storage and torque averaging, and a self-diagnostics test
package. Both the RWT310 and RWT320 can operate from a wide range of ... |
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Reducing Engine Friction |
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Sensor
Technology Ltd: An innovative torque sensor is helping to reduce
engine emissions and improve economy as part of a project to develop an
intelligent lubrication system. With engine efficiency under the
spotlight like never before, automotive companies are exploring all
avenues for improving performance. And because engines have a rotating
power output, torque is the key measurement. Car engines are the bett
noir of the environmental lobby. There is no doubt that they are major
contributors to carbon build up. But equally they are fundamental to
modern life. A true replacement is decades away, so we have to make them
as efficient as possible. Engine lubrication systems are essentially
dumb. They have a simple mechanical pump which has been sized to ensure
an adequate supply of oil in the worst operating condition. This is
typically a hot engine at idle. The pump is thus hugely oversized for
most of the rest of the speed range and, as a consequence, nearly 60% of
its output is dumped straight back into the sump via the relief valve.
It will also deliver the same amount of oil to every part of the engine
regardless of what that system might actually need. The pump is also
insensitive to engine load and thus the bearings will receive the same
oil supply at a given speed regardless of the load. ... |
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Find
all manufacturers and suppliers of
torque sensors
torque measurement devices |
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Reaction Torque Sensor Available with USB
Output |
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FUTEK
Advanced Sensor Technology, Inc. has just added the TFF Reaction
Torque Sensor to their USB Sensor Solution Line. The new module with USB
output eliminates the need for an analog amplifier, power supply, and
display equipment making usage that much easier. The plug and play gives
you power to monitor the output of the sensor and enjoy measurement and
are less affected by noise, temperature variation or power supply
requirement. The USB integration also includes FUTEK’s USB Software
which allows users to monitor the output of the Sensor in real time.
This particular model is available in Aluminum construction and features
a built-in Overload Protection up to 400 in-oz. The standard TFF425
Reaction Torque Sensor can be modified or customized to meet your
requirements. As with FUTEK’s Torque Sensor Series, the TFF425 is
manufactured in the U.S. and uses metal foil strain gauge technology.
This Flange to Flange Reaction Torque Sensor can accommodate certain
applications that include automotive braking, engine and transmission
dynamometers, torque table, fastener testing, aircraft engine testing,
and marine shaft torque measurements with shaft horsepower monitors. The
TFF425 offers a unique solution for torque auditing applications and can
be used to evaluate low-torque components and controls. Flange-reaction
torque sensors measure small-reaction torque levels using
flange-to-flange connections in-line with the component under test.
Reaction Torque Sensors are ... |
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Torque about Improving Handling Accuracy |
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Sensor
Technology Ltd: Dry bulk handling is following many other industrial
processes that have been redeveloped from a ‘black art’ to a highly
accurate and controlled procedure. A generation ago much of industry was
in the hands of time-served artisans who relied on their many years
experience to tweak and tease operations to ensure a good result.
Usually they were unable to explain why they made the decisions they
did, but the results generally turned out OK! While the idea of horny
handed sons of toil is all very romantic, it is hardly the stuff of
modern industry where precision has to be the watchword – where margins
and timetables are so tight that every thing must be controlled to
within very demanding tolerances. Computers have of course been crucial
to this advancement, and it is developing the ability for them to ‘see’
what is actually going on and constantly retune the process that is the
heart of the matter. “Technically we call this real time data
collection,” says Tony Ingham of Sensor Technology Ltd, one of the ... |
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PCB Piezotronics In-Line Rotary Torque Sensor System Series |
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PCB Automotive Sensors Division introduces Series 5300D TORKDISC®
In-line Rotary Torque Sensor Systems designed for test applications
requiring a robust rotary torque transducer where axial space is at a
premium. Onboard, the transducer is a field proven electronic module
that converts the torque signals into a high-speed digital
representation. Once in digital form, this data is transmitted to a
non-contacting pick-up loop, with no risk of noise or data corruption. A
remote receiver unit converts the digital data to a high-level analog
output voltage, and a serial digital output. Series 5300D incorporates
dual high level analog outputs, AC and DC coupled, providing both static
and dynamic torque measurement capability that can be recorded
separately and independently scaled; which is particularly beneficial
when high DC levels are present or when low levels of AC content is of
particular interest. Series 5300D also features industry leading DC
bandwidth to 8500 Hz, resulting in increased dynamic response
characteristics. The DC coupled output features an 8-pole low pass
elliptical filter with user selectable frequencies for minimal roll off
at each filter selection. A 2-pole Butterworth high pass filter with a
wide range of user selectable cut off frequencies is included with the
AC coupled output. Series 5300D TORKDISC® units are ideal for
applications such as automotive engine, powertrain & chassis dynamometer
testing ... |
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FUTEK Torque Sensor with USB Output |
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FUTEK
Advanced Sensor Technology, Inc is pleased to present its TFF400
Reaction Torque Sensor with a brand new USB Digital Interface with 16
bits resolution. With this improvement, FUTEK has once again shown their
innovation by becoming one of the first Sensor manufacturers to offer a
USB type solution for Strain Gage Based Torque Sensors. FUTEK’s USB
Sensor Solution provides an easy “Plug & Play” with basic software
making the System Integration even simpler. FUTEK’s TFF400 Reaction
Torque Sensors feature a Flange to Flange mounting solution with torque
measurements ranging from +/- 5 inch-oz to 500 inch-pounds, (+/-0.04 to
60 Nm) and Torsional Stiffness of 325 inch-oz/radians to 199,000 Inch
pounds/radians. The TFF400 utilizes Metal Foil Strain Gage technology
and features an Overload Protection for the low capacity units to help
prevent overload damage that may occur during installation. With the
recommended Mounting Plate, a full range of mounting options becomes
available. The TFF400 Torque Sensors are made from Aluminum and anodized
for optimum durability. ... |
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Testing time for vacuum cleaner maker |
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Sensor
Technology Ltd: A company that designs and build custom test
equipment for the manufacturing and research industries has developed a
cost saving sub-system that allows eight dynamometer test rigs to share
a single calibration unit based on a Digital TorqSense transducer from
Sensor Technology Ltd. The company, 1st Pass of Westbury in Wiltshire,
started out as a regional systems integrator for National Instruments’
LabView software packages. However, it quickly realised that there was a
considerable need for a wider service encompassing all aspects of test
rig design and build. Founder and Managing Director, Chris Turner,
explains: “Engineers involved in either research or quality control need
test rigs, but designing them is not their forte. They tend to focus
only on the immediate requirements so tend towards inflexible,
mono-functional designs. Six months later when new requirements emerge,
they have to build another rig”. ... |
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Find
all manufacturers and suppliers of
torque sensors
torque measurement devices |
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Servo research points the way to improved
dynamics |
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Sensor
Technology Ltd: Research at the University of Manchester has
demonstrated servo systems with vastly improved dynamics with the most
challenging of loads. The key to the increased performance is a torque
transducer from Sensor Technology employing Surface Acoustic Wave (SAW)
techniques to deliver high-bandwidth, non-contact solution. The ease of
set-up of modern servo drive systems, combined with steadily reducing
costs, has made servo control an attractive proposition across the
spread of motion control applications in a wide range of industries.
Despite the developments in inverter technology which promise near-servo
performance, in the most demanding applications requiring the fastest
response and the most precise control of position, velocity and torque
only true servo systems can cut the mustard. The ease of access to servo
technology, and the steadily increasing capabilities of servo
controllers, has seen machine designs pushing the boundaries ever
further, with faster system response becoming an increasingly common
industrial requirement. With a perfect load, this would not represent a
problem. But no load is perfect. Practical mechanical drive systems can
be complex, incorporating several non-still interconnecting shafts and
elastic couplings, all characterised by ... |
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Kistler Torque Sensors Test Jaguar
Steering Column |
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Kistler:
Located on the Rassau Industrial Estate at Ebbw Vale, Gwent, ZF Steering
Systems Nacam Ltd (Nacam) manufactures steering columns for most
European passenger car companies, which means that QA is of critical
importance. The thrust of the QA regime has always been to use the best
technology to minimize the possibility of human error compromising
product quality. Naturally, with safety critical components, the primary
objective is to ensure that a component does not fail in service but
there is the secondary consideration of protecting the company’s
well-established reputation for quality and reliability. For a number of
years, Nacam has used Kistler (www.kistler.com) sensors and monitoring
systems in QA applications and the latest is a test rig to ensure that
the screw threads in the universal joints for the new Jaguar XF are
within specification. The test rig, designed by Nacam with technical
assistance from Kistler, uses two Kistler Type 4502 miniature torque
sensors to ... |
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SenGenuity and Transense Technologies
Partner to Advance Wireless Surface Acoustic Wave Pressure and Torque
Sensing Technology |
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SenGenuity, the sensors division of Vectron International, a
leader in the design, manufacture and marketing of Frequency Control,
Sensor, and Hybrid Product solutions, today announced that it has
entered a non-exclusive licensing agreement with Transense Technologies,
a developer of Surface Acoustic Wave (SAW), wireless, batteryless,
sensor systems for the automotive industry. Under terms of the
agreement, the two companies will develop and manufacture wireless
sensors for use in both pressure and torque sensing applications. This
partnership furthers SenGenuity’s mission of leveraging the worldwide
infrastructure of Vectron’s core frequency control products business
towards the development of breakthrough SAW based sensing solutions.
Since its inception, Transense has compiled an impressive portfolio of
SAW-based sensing technology specific to passive pressure and torque
sensors that can be wirelessly interrogated for measurement purposes.
Applications range from tire pressure sensing to advanced steering
system and powertrain torque monitoring in automotive markets, as well
as a broad array of industrial and medical pressure and temperature
sensing applications ... |
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UAV takes fast track to altitude |
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Sensor Technology Ltd: Development of a vertical take-off and
landing unmanned aerial vehicle is nearing completion, thanks in part to
a non-contact digital torque sensor, TorqSense, which proved the only
viable option for use on the test rig. The low-cost, flexible search and
surveillance unmanned aerial vehicle (UAV) is intended for military,
homeland security, policing and environmental monitoring. It is rugged,
immediately deployable and can be launched from the ground, ship or even
moving vehicles. The vectored-thrust UAV platform is suitable for any
situation requiring safe aerial viewing or sensor measurement. It is
being developed by SELEX Sensors and Airborne Systems (S&AS), a
Finmeccanica company. “The TorqSense technology has been one of the key
enablers for the development and implementation of the novel propulsion
system on the Damselfy UAV” said Mark Agnew, Selex’s Chief Engineer for
UAV Systems. Leading the project is Ashley Bryant, who started out
wanting to build a flyable scale-model replica of the vertical take off
Harrier jump jet, but quickly saw the potential for a professional UAV.
Using a jet engine was out of the question, a ‘cold fan’ solution the
only practical option. “A jet engine combusts fuel to turn its turbine
and create thrust,” he explains. “Our cold fan is driven, via a drive
shaft, by a miniscule but powerful two-stroke engine. Developing this
technology required us to build a unique test rig, with an in-line
torque sensor ... |
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SAWS: A Cutting Edge Technology |
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Sensor
Technology is a small hi tech Company involved in the R&D and
production of rotary torque measuring transducers using Surface Acoustic
Wave (SAW) technology. It is also involved in the licensing of this
technology. The Company is privately owned by the Lonsdale twins,
Anthony and Bryan, and Tony Ingham. It has been established for the last
27 years in a picturesque converted water mill near Banbury, Oxfordshire.
Throughout its history the Company's skills have been in carrying out
bespoke R&D for clients in Magnetometer and Navigation Systems and
Torque Sensors. Indeed, it was the amalgamation of working on a
navigation and magnetometer system in 1990 that led Anthony Lonsdale to
experience problems with the SAW devices he was using and realise that
he could turn this disadvantage into an advantage, that SAWs could be
used to measure strain. ... |
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