Design in Hydraulic Digital Throttling Valve with the Direct Controlled by Monolithic Microcomputer

The features and the operating principle of pure water hydraulics are introduced in this paper,as well as the control system designing of digital throttling valve;The system with stepper motor can be directly controlled by the microcomputer and drive the valve core of valve,which drives an axial-direction moving so as to modification the area of throttling valve resulting in the adjustment of the flow,In this way,direct control can be fulfilled.