Patent ID: 9593992
Date: 2017-03-14
CPC Classifications: A63B,G01B,G01C,G01L

Claim:
1. A torque detecting system adapted to detect a setting torque of a torque providing apparatus driven by a torque driving apparatus mounted on a stationary base, wherein the torque driving apparatus exerts a resisting force on the torque providing apparatus and the setting torque of the torque providing apparatus corresponds to the resisting force, the torque detecting system comprising: an angle detecting module mounted on the torque driving apparatus and outputting a detecting voltage that is varied with a movement of the torque driving apparatus relative to the stationary base; and an operation device electrically connected to the angle detecting module to receive the detecting voltage and obtain a torque value via table-searching based on the detecting voltage, wherein the torque value corresponds to the setting torque of the torque providing apparatus; wherein the operation device comprises a voltage adder having two input terminals respectively and electrically connected to the angle detecting module and an auxiliary detecting module, wherein the angle detecting module and the auxiliary detecting module are configured toward opposite directions; a differential amplifier having a first input terminal receiving a reference signal; a second input terminal electrically connected to an output terminal of the voltage adder; and an output terminal generating a differential signal; an analog-to-digital converter electrically connected to the output terminal of the differential amplifier to convert the differential signal to a differential value; and a microcontroller electrically connected to the analog-to-digital converter and storing a torque table to select the torque value from the torque table according to the differential value generated by the analog-to-digital converter.