The paper mainly focus on the experimental research on pneumatic on-off valve motor position servo control system with PCM control method and self-adjusting PID algorithm.

This paper give an advice that we can realize closed cycle control of feeding shaft by proportional valve and linear grid ruler instead of servo amplifier and servo motor.

So instead of using Nd-Fe-B Alnico motor to reduce the size of the torque, but also on reducing the size of the servo valve, a reduction of quality, cost savings.