Measuring and testing – Dynamometers – Responsive to torque
Patent
1990-09-18
1993-07-20
Woodiel, Donald O.
Measuring and testing
Dynamometers
Responsive to torque
32420772, 32420725, G01L 310
Patent
active
052283496
ABSTRACT:
A composite torque transmitting power shaft is provided with built-in discrete sensible ferromagnetic elements. The composite shaft is formed of a non-ferromagnetic material so that the sensible elements, disposed interiorly of the shaft, can be sensed by a sensor element positioned outside of the shaft. Two groups of sensible elements are movable with respect to each other as the shaft twists under the application of torque. The elements can be sensed to provide an indication of the speed, torque or horsepower transmitted by the shaft. Further, the frequency and amplitude of torsional oscillations caused by pulsating power source or load characteristics can also be measured.
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Gee Herbert F.
Parkinson James R.
Lewis Leonard L.
Simmonds Precision Products Inc.
Woodiel Donald O.
Zitelli William E.
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