Modeling And Simulation Of Hydraulic Digital Valve With Controlling Of Stepping Motor

The electro-hydraulic servo system involves the merits of both electricity and hydraulic pressure. It not only has the facility of electric system's checking, rectifying and magnifying error signal, but also has the advantages of hydraulic system's high response and great stiffness of load, high power-weight ratio and high power-mass ratio of hydraulic element, thus the closed loop control is realized and the system becomes the very servo system with the greatest precision. It has been applied in every field of both national economy and military industry, especially in the condition with great loading and high response speeds.With the development of electro servo system and computer technology, which combine with each other more and more tightly, the digital control of the hydraulic servo system comes into being and develop quickly with more and more obvious dominance in the hydraulic control system. As a result, the...