US 12,098,967 B2
Torque and angle sensing device
Jay Jamshid Khazaai, Commerce, MI (US); and Gregory S. DePue, Tustin, CA (US)
Assigned to BOURNS, INC., Riverside, CA (US)
Filed by BOURNS, INC., Riverside, CA (US)
Filed on May 7, 2021, as Appl. No. 17/314,540.
Prior Publication US 2022/0357223 A1, Nov. 10, 2022
Int. Cl. G01L 3/10 (2006.01); G01P 3/481 (2006.01)
CPC G01L 3/109 (2013.01) [G01L 3/101 (2013.01); G01P 3/481 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method of measuring torque applied to a shaft, the method comprising:
generating, with a first sensor, a first signal indicative of an angle and/or speed associated with a first reference connected to the shaft;
receiving, from a second sensor, a second signal indicative of an angle and/or speed associated with a second reference connected to the same shaft as the first reference;
determining, with a first processing circuit, an indication of torque applied to the shaft based on at least the first signal and the second signal, wherein the first sensor and the first processing circuit are integrated in a device, wherein the second sensor is external to the device, and wherein the second sensor and a second processing circuit are integrated in a second device;
comparing, by the first processing circuit, the indication of torque with a second indication of torque applied to the shaft generated by the second processing circuit; and
outputting a torque measurement based on the comparing.