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With
the new Model A-10, WIKA introduces a new generation of pressure
transmitters for general industrial applications. The instrument is
impressive, not only for its compact size, but also for its excellent
quality at an extremely competitive price. The user can choose between a
non-linearity of 0.3% and 0.6%, while a free test certificate carries
the measurement point information recorded during manufacture. The A-10
pressure transmitter is capable of use worldwide thanks to its
international approvals. The various pressure units and process
connections necessary for a full range of operating conditions are
available on short lead times. A plus from WIKA for your application.
...
Electronic
pressure measurement with local display is desirable in many areas of
machine building and equipment engineering, in hydraulic and pneumatic
applications and also for general service operations. WIKA can
now offer you the ideal solution for a local, battery-operated
measurement and display instrument. The digital gauge is notable for its
accuracy, reliability and high mechanical strength. The DG-10 has a
robust stainless-steel case and is available in two configurations
(“Standard“ and “Enhanced“) for the widest range of applications. As
standard in the DG-10-S are graduated measuring ranges from 2 to 600
bar. The user can easily switch between the most widely accepted
international measurement units; bar, psi and MPa. The multi-function
display features a bargraph with a drag pointer function as well as a
MIN/MAX memory. The power is supplied by a standard type AA battery. In
the DG-10-E, further functionality, such as tare adjustment, automatic
power-off time, display backlight, rotatable case and password
protection, completes the digital gauge range’s capabilities.
RoboMower®,
the world-leading brand of self-guided lawnmower, relies on an Autonnic
AR35 floating core fluxgate at the heart of its guidance system. The
fluxgate output provides the continuous directional information used to
maintain the mower’s course within the marked boundary of the lawn. The
flange is outstandingly suitable for test stand use in applications
including internal combustion engine, transmission, roller, wheel load,
electric motor and pump test rigs. Manufacturer Friendly Robotics
requires especially tight control over straight-line performance to
minimise wandering to within one degree. Controlling absolute direction
of travel allows a little more tolerance. Cost-effective technology:
Friendly Robotics considered several different technologies for the
guidance system before opting for fluxgates. “We went for fluxgates
because they give us the accuracy and, with a gimballed system, they
provide a solution that is cost-effective because it is relatively
straightforward to implement,” explains Shai Abramson, Vice President,
Research and Development. Inherent compensation for the dip angle of the
earth’s field is essential and Friendly preferred the liquid gimbal
provided by the floating core to mechanically gimballed alternatives.
“When we originally approached Autonnic they were most co-operative in
customising the design to match our specification,” says Abramson. The
AR35, tilt-compensated fluxgate used is common to that in the OEM
compass module ... 
With
PR4402 PREMA Semiconductor offers the next IC in a family of 0.9V
LED boost drivers, operating white LEDs from one battery cell. While
PR4401 is best suited for LED currents of up to 20mA, PR4402 is capable
of 40mA. The current is set by the inductor value, resulting in a low
number of external components. Applications are pocket torches, key ring
pendants or head lights and LCD back lighting in single-cell devices
like MP3 players. The one-cell battery operation is very attractive. It
allows design of smaller and light weighted products at lower cost. In
multiple-cell operation of rechargeable batteries often one cell can be
destroyed by a deep discharge. With the PR4401/4402 there is no more
reason for using several battery cells or for implementing the classical
light bulb. With one battery cell and depending on the application one
inductor only as external component, a very small-sized circuitry can be
realized with the PR4401/4402, both SOT23 packaged. The driven LED
current is almost independent from the supply voltage, which guarantees
a constant brightness even with a discharging battery. ...
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