EMF Shielding Effectiveness of Knitted Fabrics of Metallized Threads

Marianna Grecka, Olegs Artamonovs, Juris Blums, Andrea Ehrmann, Ausma Vilumsone

Abstract


The aim of the study is to clarify the EMF shielding effectiveness (SE) of textiles with metallized yarns depending on their combinations and the position of samples with respect to the radiation source. For developing of the samples 3 types of metallized threads were used. Single and double jersey samples were made with manual flat knitting machines (gauges E7 and E10). To measure SE, two methods were used. The samples were placed between the radiation source and the detector and radiated with frequencies of 1.161 GHz and 870 MHz. The average result of SE is 92 % for all knitted fabrics produced in this study.

Keywords:
knitting, metallized threads, shielding effectiveness

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References


Latvijas brīvo arodbiedrību asociācija. Darba higiēna. Rīga: Latvijas labklājības ministrija, 2010.

Weber, M.O., Akter, F., Ehrmann, A. Shielding of static magnetic fields by textiles. Industria Textila. 2013, Vol. 64, pp. 184–187.

Kowal, M., Kubal, S., Zielinski, R.J. Measuring the shielding effectiveness of large textile materials in an anechoic chamber. IEEE, 8/12, 2012.

Mistik, S.I., Sancak, E., et al. Investigation of electromagnetic shielding properties of boron and carbon fiber woven fabrics and theirs polymer composites. In: RMUTP International Conference: Textiles & Fashion 2012., Bangkok ,Thailand, July 3-4, 2012.

Vojtech, L., Neruda, M. Application of shielding textiles for increasing safety airborne systems. In: 2010 IEEE International Conference on Data Miming. pp. 10–16 http://doi.org/d6r6qr




DOI: 10.7250/mstct.2014.008

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