摘要
电子设备，尤其是军用电子设备的金属壳体，除具有机械支撑和保护作用外，还应具有一定的屏蔽效能，才能确保设备的电磁兼容性。预测试金属机柜的屏蔽效能一直是电磁兼容性研究与设计的一大课题。本文介绍了用广谱信号源作为发射装置进行机柜屏蔽效能测试的原理和方法。
The metallic case of electronic facility,especially for military facility,should have certain shielding effectiveness except mechanical supporting and protecting function.Measuring shielding effectiveness of metallic case of electronic facility before assemblage is an important subject in EMC researching and designing.This article introduced a method to measure the shielding effectiveness of metallic case using a wide band signal source.
关键词
屏蔽效能
金属机柜
电磁兼容性
测试
shielding effectiveness， wide band signal source， metallic case， electromagnetic compatibility
