Measuring and testing – Dynamometers – Responsive to torque
Patent
1997-12-18
2000-08-29
Oen, William
Measuring and testing
Dynamometers
Responsive to torque
G01L 302
Patent
active
061091170
ABSTRACT:
A variable resistance weight sensor incorporates a plurality of force sensitive resistance elements disposed between a pair of force distributing plates. One of the force distributing plates incorporates an associated plurality of protrusions for transferring, in cooperation with the second force distributing plate, an associated component of the compressive load to the associated force sensitive resistive element, whereby the resulting resistance of the force sensitive resistive element is inversely related to the magnitude of the associated compressive load component. The force sensitive resistive elements are interconnected in series, whereby a signal processor measures the applied load from the associated series resistance. A diode connected in parallel with the series combination of force sensitive resistive elements provides a means for diagnosing the sensor.
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Campbell James A.
Hughes Timothy E.
Stanley James G.
Automotive Systems Laboratory Inc.
Oen William
Thompson Jewel V.
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