The study of metal meshes on electromagnetic interference shielding effectiveness

Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402) Pub Date : 2000-05-03 DOI:10.1109/CEEM.2000.853958

L. Dichen, Deng Suqiao

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引用次数: 6

Abstract

There is a good shielding effectiveness of metal meshes on electromagnetic interference caused by all kinds of reasons. 11 metal meshes of different specification of four materials are tested at different frequency steady-state fields and single variable transient fields. Also, their shielding effectiveness is calculated and analyzed. The results of the tests and analysis show that: (1) shielding effectiveness is correlated with factors such as the meshes diameter, mesh variable-density structure standards and so on; (2) within a certain frequency, the effect of mesh size on shielding effectiveness is small; metal materials shielding effectiveness changes with the frequency's variety; and (3) in shielding of the tying measure of metal mesh weld show its superiority over the screw. We must ground the shielding body reliably. The tests and analysis results of this paper are of important significance in anti-interference study and application to electromagnetic compatibility, modern monitors, communication, and computer control rooms.

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金属网对电磁干扰屏蔽效果的研究

金属网对各种原因引起的电磁干扰具有良好的屏蔽效果。在不同频率的稳态场和单变瞬态场下，对四种材料的 11 种不同规格的金属网进行了测试。此外，还对它们的屏蔽效果进行了计算和分析。测试和分析结果表明(1）屏蔽效果与网孔直径、网孔变密度结构标准等因素相关；（2）在一定频率范围内，网孔大小对屏蔽效果的影响较小；金属材料的屏蔽效果随频率的变化而变化；（3）在屏蔽的绑扎措施上金属网焊缝显示出其优于螺钉。我们必须将屏蔽体可靠接地。本文的测试和分析结果对电磁兼容、现代显示器、通信和计算机控制室的抗干扰研究和应用具有重要意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402)

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