| 混响室环境下小屏蔽体屏蔽效能的试验研究 |
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| 引用本文： | 程二威,王庆国,曲兆明,杨权.混响室环境下小屏蔽体屏蔽效能的试验研究[J].河北师范大学学报(自然科学版),2009,33(5). |
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| 作者姓名： | 程二威 王庆国 曲兆明 杨权 |
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| 作者单位： | 1. 军械工程学院,静电与电磁防护研究所,河北,石家庄,050003
2. 武汉士官学校,特种车辆教研室,湖北,武汉,430075 |
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| 摘 要： | 采用统计方法试验研究了混响室条件下小屏蔽体的屏蔽效能.为解决传统屏蔽效能定义方法存在的问题,提出了屏蔽效能的统计定义,建议采用平均屏蔽效能和最低屏蔽效能共同表示小屏蔽体的屏蔽特性.试验结果表明,采用统计定义后测量结果可以准确反映小屏蔽体的整体屏蔽特性,能有效指导相应电子器件的电磁屏蔽;测量数据稳定,5次测量数值最大偏差小于1dB,变异系数小于0.032,具有较好的可重复性.
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| 关 键 词： | 混响室 小屏蔽体 屏蔽效能 统计定义 重复性 变异系数 |
Research on Testing the Shielding Effectiveness Measurement of Small Enclosures in Reverberation Chamber |
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| CHENG Er-wei,WANG Qing-guo,QU Zhao-ming,YANG Quan.Research on Testing the Shielding Effectiveness Measurement of Small Enclosures in Reverberation Chamber[J].Journal of Hebei Normal University,2009,33(5). |
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| Authors: | CHENG Er-wei WANG Qing-guo QU Zhao-ming YANG Quan |
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| Institution: | 1.Institute of Electrostatic & Electromagnetic Protection;Ordnance Engineering College;Hebei Shijiazhuang 050003;China;2.Teaching and Research Section of Special Vehicle;Wuhan Ordnance Petty officer Institute;Hubei Wuhan 430075;China |
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| Abstract: | Regarding to the shortage of standard testing methods in measuring the shielding effectiveness(SE) of small enclosure within reverberation chamber,a new testing method of measuring the SE of small enclosures within reverberation chamber that based on the statistic methods and multi-points measurement is put forward.The tests consequences indicate that the statistical definition of SE can separate the enclosures which have different apertures.And the results can reflect the shielding ability of the enclosure... |
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| Keywords: | reverberation chamber small enclosure shielding effectiveness statistical definition repetitiveness variability coefficient |
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