Application of Electronic-Hydraulic Closed Digital Servo Motor Speed Control System

A study focussed on an electronic hydraulic servo motor, in which an optical electric pulse coder is used as the feedback sensor. Integrating structurally the servo valve into a motor, the natural frequency of the system is increased. By means of a PC104 bus CPU board, intelligent control algorithm is realized, and step response experimental results are shown. The speed measurement device having high accuracy, wide range and fast response is implemented by the use of a single chip computer.