工控系统的屏蔽抗干扰技术

The Application of Shielding in Industry Control System

在电磁兼容工程中,屏蔽是广泛采用的抑制电磁干扰的有效方法之一。绝大多数电磁干扰都可以通过屏蔽的方法加以抑制或抵消。本文介绍了在电磁兼容设计工程中广泛采用的屏蔽技术,按照不同的类别阐述了其工作原理,通过对屏蔽原理的分析给出了实际工程中屏蔽线的接线方法。本文有利于设计人员了解电磁屏蔽的实质,以在设计中充分考虑。

In the EMC （ Electromagnetic Compatibility） engineering, shielding is one of the most efficient method to suppress the electromagnetic disturbance. Most of the electromagnetic disturbance can be suppressed or killed by shielding. The most often used shielding in the EMC design was introduced, and its working principle was explained according its sort and its practical use.