目前，在自动化领域主要的控制方式有继电器控制、微机控制和PLC控制三种。
At present, the main control way in automatization field are relay control, microcomputer control and PLC control.
介绍了一种由微机控制的对DL、DY - 20c系列电流、电压电磁继电器动作时间及抖动时间自动检测的方法。
This paper introduced the method of the automatic measurement of DL (DY) - 20c series current (voltage) electromagnetic relay movement time and vibration time controlled by computer.
分析了微机ul P失磁继电器的准确动作方程及整定计算方法，弥补了某些文献的不妥或不足之处。
Accurate operation equation and setting calculation on microprocessor based UL-P loss of excitation relay are analyzed in this paper which has supplied a deficiency in some works or papers.
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