| 电磁兼容中有关电磁屏蔽的设计及工程计算方法的研究 |
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| 引用本文： | 张立伟,李雪花.电磁兼容中有关电磁屏蔽的设计及工程计算方法的研究[J].船电技术,2010,30(1):35-40. |
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| 作者姓名： | 张立伟 李雪花 |
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| 作者单位： | 南京全信传输科技股份有限公司,南京,211113;南京埃斯顿数字技术有限公司,南京,211100 |
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| 摘 要： | 为了确定电磁屏蔽的屏蔽设计效能，本文采用电磁场传播理论和原理，计算了吸收损耗、反射损耗、二次或多次反射损耗修正系数等以及铜金属板和铁磁金属板的不同频率下的屏蔽效果、多层屏蔽体的屏蔽效果。计算结果显示：屏蔽效能值除了与屏蔽体的材料、结构形式等有关外，还与电磁场源的类型、场源到屏蔽体的距离、电磁场源的频率等有关。
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| 关 键 词： | 电磁兼容 电磁屏蔽 屏蔽效能 场源 工程计算 |
Design and Computational Method of Engineering Electromagnetic shielding in EMC |
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| Zhang Liwei,Li xuehua.Design and Computational Method of Engineering Electromagnetic shielding in EMC[J].Marine Electric & Electronic Technology,2010,30(1):35-40. |
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| Authors: | Zhang Liwei Li xuehua |
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| Institution: | 1. Nanjing Quanxin Cable Technology Co.;Ltd;Nanjing 211113;China;2. Nanjing Estun Digital Technology Co.;Nanjing 211100;China |
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| Abstract: | In order to confirm the efficiency of electromagnetic shielding, this paper uses the spreading theory of the electromagnetic field to calculate absorbing loss, reflecting loss, secondary or repetitious reflecting loss correctional quotiety and so on. It also calculates shielding effectiveness of the copper board and iron board in the different frequency and the screening capability of multilayer object. Calculating result shows that in addition to shielding material and the structure form.etc, shielding eff... |
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| Keywords: | electromagnetic compatibility （EMC） electromagnetic shielding shielding effectiveness field source computational method of engineering |
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