Development of Dynamic Measuring System for Small-motor Torque-moment

This paper expounds the work principle and the torque measuring as well as rotating speed measuring methods used by the sensor which are based on the phase difference. The system scheme of the measurements is proposed, which is based on PC for controlling. The hardware electric circuit and the software designing idea are discussed in detail. The experiment and practical test results show the validity of the design and the reliability of the performance of the system.