文章论述了由MCS-51单片机构成的可控硅中频热处理自动控制系统,该系统采用8031单片机作为核心,通过采集电路采集中频电源的电流、电压信号并送入8031进行处理,然后输出一个控制量去控制中频电源的输出功率,本系统还可通过键盘改变被控制功率和热处理的时间;文中还详细介绍了该系统的硬件电路和软件组成。 This article discusses the controllable medium frequency heat treatment automatic control system which is made up of MCS-51 single-chip microcomputer. The system uses 8031 ​​single-chip microcomputer as the core, through the acquisition circuit to collect the current and voltage signals of the intermediate frequency power supply and send it into the 8031 ​​for processing and then output a control amount To control the output power of the IF power supply, the system can also be changed by the keyboard is controlled power and heat treatment time; the article also details the system hardware circuit and software components.