Torque detection device for shaft gearing has expansion measuring unit attached to surface of flexible externally-toothed cogwheel transmitting torque

摘要

The device has at least one expansion measuring unit attached to the surface of the flexible externally-toothed cogwheel transmitting the torque, providing a bridge circuit, coupled to a signal processing circuit indicating the transmitted torque from the output signals of the bridge circuit. The expansion measuring unit has an expansion measuring device arrangement with detection segments (A-D) having a grid pattern of resistance wires.