Patent ID: 7832289

Claim:
A sensor for detecting a rate of change of torque experienced by a member capable of transmitting torque, comprising: a. a sense element configured to output a signal indicative of a rate of change in torque experienced by a member carrying or subjected to a time-varying torque, wherein the sense element is capable of detecting a change in a magnetic parameter of a circumferentially magnetized region of the member positioned proximate to the sense element in response to a change in torque experienced by the member; and b. a processor operatively associated with the sense element and configured to process signals indicative of a rate of change in torque that are output from the sense element to determine a rate of change of torque experienced by the member; and c. a memory operatively associated with the processor and configured to store data output from the processor and representing rate of change of torque information in the signal output from the sense element.