【摘要】 介绍单片机在数字比例阀控制系统中的应用 ,包括系统的工作原理、组成 ,系统的硬件、软件设计 .利用步进电机做 D/A转换器 ,用增量方式对液压阀的压力流量进行控制 ,使之具有灵活性、可靠性、价格低廉、抗污力强、重复性好、工作稳定和功耗小等优点 .该系统具有广泛的实用性更多还原

【Abstract】 The application of single chip micro computer to the digital proportional valve control system is described in detail. The description includes the operating principle and composition of the digital valve control system, circuit design and program design, the use of step by step motor as D/A converter, and the control of pressure flow of hydraulic valve by incremental mode. This is a flexible and reliable method. It is cheap in price, strong in fouling resistance, good in repetitiveness, steady in work, and small in power consumption. It has a wide practical applicability.更多还原