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Parameter Description of the Surface Metal Fiber Arrangement of Electromagnetic Shielding Fabric

Research and development

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Nr DOI: 10.5604/12303666.1228174

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Abstract:

The influence of the surface metal fiber (SMF) arrangement on the shielding effectiveness (SE) of electromagnetic shielding fabric (EMSF) is important, but there is no reasonable description method for it at present, making the further exploration of the relationship between SMF and SE difficult. In order to scientifically describe the SMF arrangement of EMSF, this paper constructs a binary feature matrix of SMF based on a previous study of SMF region recognition. According to the feature matrix, three parameters of the exposure ratio, the discrete mean and disorder degree are proposed and the calculation equations for the three parameters given. Experiments were designed and testing samples determined to test the SE, and the exposure ratio, discrete mean and disorder degree of each sample are calculated. The relationship between the three parameters and the SE is analysed for effectiveness validation of the three parameters. Results show that the exposure ratio, discrete mean and disorder degree can describe three aspects of the SMF arrangement: the percentage content, porosity and orientation, which are positively correlated, negatively correlated and positively correlated to the SE, respectively. The research in this paper provides a basis for the study of the shielding mechanism, the transmission model, the shielding rule and the rapid non-destructive evaluation of the EMSF, and puts forward a new idea for the study of shielding theory and the application of the EMSF.

Tags:

electromagnetic shielding fabric, surface metal fiber blends, surface metal arrangement.

Citation:

Liu Z, Su Y, Pan Z, Li Y, Wang X, Zhou Z. Parameter Description of the Surface Metal Fiber Arrangement of Electromagnetic Shielding Fabric. FIBRES & TEXTILES in Eastern Europe 2017; 25, 2(122): 62-67. DOI: 10.5604/12303666.1228174

Published in issue no 2 (122) / 2017, pages 62–67.

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