光电耦合器在伺服系统中的应用

摘要

光电耦合器是一种发光器件和光电器件组成一体，完成电-光-电转换的器件。在此介绍了高速光耦、线性光耦的结构和原理及其在伺服系统中的应用，充分体现了光耦体积小、响应速度快、隔离效果好、具有较强的抗干扰能力的优点。%Optocoupler is a device that composed of light-emitting devices and optoelectronic devices; it completes electric- light- electricity conversion. This article describes the main structures and principles of the ordinary optical coupler and linear optocoupler, and its application in the servo system. The advantages of small size, fast response, good isolation, high linearity, strong anti-interference ability are fully reflected.