TRIZ evolution theory was integrated with reciprocating seal design of servo hydraulic cylinder to predict the future technology,and TRIZ conflicts resolving principles wa.

The rolling servo cylinder's rolling force is great, stroke is short, frequency respone is rapid and testing is difficult.

This paper has established the mathematical model of frequency characteristic test with the dynamic frequency scanning mode of AGC servo cylinder as an example, and on this basis, solved the problems of how to determine the value of k and how to select the value of frequency scanning.

This paper builds up the mathematic model of frequency characteristic test based on the example of dynamic frequency scanning problem of servo cylinder, and solves the problems of how to determine the value of k and of how to determine the value of Frequency Scanning.

The paper takes Rolling Mill Hydraulic AGC servo cylinder as study object to analyze,compare,and optimize the power match design method.

In the remote control equipment of servo cylinder, pattern of "electricalpneumatic" type, MicroComputer programming technology of "PID" calculating method is applied to the above governor unit.