一、前言 微型计算机(微型机)用于工业生产进行实时控制时,能否提高经济效益的关键是系统的可靠性。其中系统的抗干扰性是保证系统可靠性的一个重要方面。 工业生产环境下的强电干扰一般都是以冲击脉冲的形式进入微型机的。它将破坏某些器件的正常状态,甚至损坏器件,从而影响整个系统的稳定运行。 微型机用于实时控制时,强电干扰窜入系统的渠道主要有三个:空间感应、联结主机和受控设备的过程通道以及它们的配电系统。一般情况下经空间感应窜入的干扰在强 I. Introduction Micro-computer (micro-machine) for industrial production for real-time control, the key to improving economic efficiency is the reliability of the system. One of the system’s anti-interference is to ensure the reliability of the system is an important aspect. In the industrial environment, the strong electrical interference usually enters the microcomputer in the form of shock pulse. It will destroy the normal state of some devices, or even damage the device, thus affecting the stable operation of the entire system. Micro-computer for real-time control, the channeling of high-power interference into the system there are three main channels: the spatial induction, the process of linking the host and controlled equipment and their distribution system. Under normal circumstances the interference of space sensors flew into the strong