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为了普及电磁兼容性(EMC)的上作,扼要地概述了 EMC 的基本知识:(1)什么叫电磁干扰(EMI)。列举了几种电磁干扰现象,产生的途径及其危害:(2)什么叫电磁兼容性(EMC),简单地介绍了 EMC 的产生、发展、重要性,与“Tempest”的区别,以及 EMC设计的主要内容:(3)EMC 的测试。介绍了 EMC 的测试内容。EMC 的测试不同于一般的测试,需要按照规定的标准和规范来进行。为了保证测试的重复性和精确度,还需要专门的测试条件、测试环境。最后,介绍了几种主要测试设施和对干扰信号类型的判别方法,以及电磁场计量单位的换算等内容。
In order to popularize the electromagnetic compatibility (EMC) on the job, a brief overview of the basic knowledge of EMC: (1) what is the electromagnetic interference (EMI). (2) What is Electromagnetic Compatibility (EMC), a brief introduction of the EMC generation, development, importance, the difference with the “Tempest”, and the EMC design The main content: (3) EMC test. Introduced the EMC test content. EMC tests differ from normal tests in that they need to be conducted in accordance with the prescribed standards and specifications. In order to ensure test repeatability and accuracy, but also require specialized test conditions, test environment. Finally, several main test facilities and methods of discriminating the types of interfering signals as well as the conversion of units of measurement of electromagnetic fields are introduced.