机织物有效结构模型的电磁屏蔽效能影响因素

纺织学报 ›› 2015, Vol. 36 ›› Issue (07): 43-49.

机织物有效结构模型的电磁屏蔽效能影响因素

收稿日期:2014-07-07 修回日期:2015-04-02 出版日期:2015-07-15 发布日期:2015-07-20
通讯作者: 肖红 E-mail:76echo@vip.sina.com

Influential factors of electromagnetic shielding effectiveness based on the effective woven fabrics structure model

Received:2014-07-07 Revised:2015-04-02 Online:2015-07-15 Published:2015-07-20

摘要/Abstract

摘要：

基于对含金属纱线机织物的结构分析，提出该类织物的有效电磁屏蔽结构由金属纤维纱线构成；采用裸铜丝制备模拟织物中金属纱线排列的有效结构模型样品，改变其排列方式、排列间距、交叉处及四周连通情况等的模型样品，用屏蔽室法获得1～18 GHz范围内的屏蔽效能。结果表明：金属纱线排列间距是影响屏蔽效能的关键因素；金属纱线单向排列和双向排列样品的屏蔽效能一样，但是单向排列样品具有显著方向性；双向网格排列样品的网格尺寸影响其屏蔽效能。实验条件下金属纤维纱线交叉点处的连通情况对屏蔽效能影响不大，但尚需要进一步研究。

关键词: 金属纤维纱线, 电磁屏蔽效能, 有效电磁屏蔽结构模型, 排列方式, 连通

Abstract:

Based on the structure analysis of woven fabric composed of metal fiber, our study showed that metal fiber yarn forms an effective electromagnetic shielding structure; the bare copper wires which simulated mental fiber of fabric formed the effective structural model s. The arrangement, arrangement spacing and connected manner between the bare copper wires of the samples were different. The shielding effectiveness of these samples is 1 ~ 18 GHZ by the shielding chamber method. The studies have shown that arrangement spacing of the metal fiber is the key factors affecting shielding effectiveness; the shielding effectiveness of the sample with unidirectional arrangement of metal fiber is the same as that with the bidirectional arrangement, but the shielding effectiveness of the sample with unidirectional arrangement metal fiber has significant direction; with bidirectional grid, the grid size of the sample affects its shielding effectiveness; under laboratory conditions, if the junction of the mental fiber is connectivity, the shielding effectiveness will be change.

Key words: metal fiber yarn, electromagnetic shielding effectiveness, effective electromagnetic shielding structure mldel, arrangement, connectivity

肖红施楣梧钞杉唐章宏王群. 机织物有效结构模型的电磁屏蔽效能影响因素[J]. 纺织学报, 2015, 36(07): 43-49.

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