浅析检测系统中的光电耦合技术

An Analysis of Photoelectricity Coupling Technology in the Testing System

在电子检测系统中,不可避免地存在各种各样的干扰信号,若电路的抗干扰能力差将导致测量、控制准确性的降低,甚至产生误动作,从而带来破坏性的后果。采用光电耦合技术能有效地破坏干扰信号的进入,可靠地实现信号的隔离。笔者对此进行了分析,并举例说明其在检测系统中的应用。

In the digital testing system, there is an inevitable existence of various jamming signals. The bad Anti-Jamming Performance in circuit leads to the accuracy of measurement and control, even some mistakes in operation, causing the disastrous consequences. Adopting the photoeleetricity coupling technology can prevent the entrance of jamming signals effectively and then realize the isolation of signals. This article makes an analysis about this and gives an illustration to demonstrate the application of the technology in the testing system.