Detection system for torque sensor of electric treadmill

A detection system of an electric treadmill torque sensor comprises a middle shaft, an induction coil, a signal processor, a strain sleeve and a magnetic ring, the strain sleeve is arranged on the middle shaft, the middle shaft is connected with a bicycle chain wheel and driven by the bicycle chain wheel, and the induction coil and the signal processor connected with the induction coil are arranged on the periphery of the strain sleeve. A microprocessor chip, an operational amplifier circuit chip, a resistor, a capacitor, a Hall element, an analog switch tube and a power supply chip component are integrated on a signal processing circuit board of the signal processor, and the microprocessor chip and the operational amplifier circuit chip are sequentially arranged in the middle of the front face of the signal processing circuit board in the axial direction of the coil framework. And the Hall element, the analog switch tube and the power supply chip component are arranged at the edge position of the back surfac