解决方案

Ø 概述

电磁兼容（EMC）指设备或系统在其电磁环境中符合要求运行，并不对其环境中的任何设备产生无法忍受的电磁干扰的能力，其包括电磁干扰（EMI）和电磁敏感度(EMS)两部分。电磁干扰测试是测量被测设备在正常工作状态下产生并向外发射的电磁波信号对周围电子设备干扰的程度；电磁敏感度测试是测量被测设备抗电磁骚扰的程度。

Ø Summary

Electromagnetic compatibility (EMC) means the ability of a device or system to operate in its electromagnetic environment without producing intolerable electromagnetic interference: electromagnetic interference (EMI) and electromagnetic sensitivity (EMS). Electromagnetic interference test is to measure the degree of interference of electromagnetic wave signals generated by the tested equipment in the normal operating state; electromagnetic sensitivity test is to measure the degree of resistance to electromagnetic disturbance.

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Ø 典型电磁干扰测试系统Typical EMI test system

 

 

Ø 典型电磁敏感度测试系统Typical Electromagnetic sensitivity test system:

 

Ø 电磁干扰测试主要设备EMI test main equipment:

 测试接收机Test receiver

测试接收机是电磁干扰测试主设备，较典型的设备为德国R&S测试接收机。

The test receiver is the main equipment of the electromagnetic interference test, and the more typical equipment is the German R & S test receiver.

LISN线性电源网络The LISN linear power supply network

LISN是电力系统中电磁兼容测试中的一项重要辅助设备。它可以隔离电网干扰，提供稳定的测试阻抗，并起到滤波的作用。

LISN is an important auxiliary equipment in the electromagnetic compatibility test in the power system. It can isolate power grid interference, provide a stable test impedance, and act as a filter.

Ø 电磁辐射测试主设备Electromagnetic radiation test main equipment:

功率放大器Power amplifier:

功率放大器用于满足测试系统的辐射信号功率，主要品牌如：R&S、Milmega、Bonn和AR。

The Power amplifier is used to meet the radiation signal power of the test system, with major brands such as R&S, Milmega, Bonn and AR.

信号发生器Signal generator：

信号发生器用于提供微波暗室的辐射场和提高整个电磁兼容测试系统的自校准。

The signal generator is used to provide the radiation field of the microwave dark chamber and to improve the self-calibration of the entire EMC test system.

射频开关RF switch：

射频开关用于在自动化测试中切换测试切换输入信号路径和电源监控信号路径。

The RF switch is used to switch the test switching input signal path and the power monitoring signal path in an automated test.

测试天线Test antenna：