Speed and torque sensor for hydraulic motor
First Claim
1. An apparatus for determining an operating parameter of a fluid motor comprising a motor housing having a deflectable housing wall region, the deflectable housing wall region deflecting in response to stress applied to the deflectable housing wall region from within the motor as the motor operates, and means for detecting the resulting strain on the deflectable housing wall region, and for producing a signal indicative of the occurrence and amount of the strain.
1 Assignment
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Accused Products
Abstract
A system for measurement of the speed and torque produced by hydraulic motors. A strain gauge-based, integral hydraulic motor speed and torque sensor is accurate in measuring the motor speed at system pressures greater than 1.4 megapascals (MPa) (203 lb./in2). The sensor can also accurately determine the torque being produced by the motor from the fluid pressure.
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Citations
10 Claims
- 1. An apparatus for determining an operating parameter of a fluid motor comprising a motor housing having a deflectable housing wall region, the deflectable housing wall region deflecting in response to stress applied to the deflectable housing wall region from within the motor as the motor operates, and means for detecting the resulting strain on the deflectable housing wall region, and for producing a signal indicative of the occurrence and amount of the strain.
Specification