Experimental Data for Study on the Shielding Effect of Electromagnetic Wave


This article presents some new experimental data for study the shielding effect of electromagnetic wave. The frequencies of electromagnetic wave are mainly focused on emission of daily electrical equipments, which are normally called “low frequency electromagnetic waves”. In this work, a water pump with maximum magnetic field intensity of ca. 2300 mG was applied as emission source of the electromagnetic wave. Experimental measurements used various shielding materials with the major constituent iron (Fe) in the form of plate for studying shielding effect of electromagnetic wave. The studied parameters were different thicknesses and gaps of the plate. The results show that pure iron plate has the best effect for shielding the magnetic field and its transmission ratio of magnetic field is proportional to distance between the emission source and the shielding plate. Moreover, the shielding plate close to the emission source received better protection.

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C. Ting and C. Chen, "Experimental Data for Study on the Shielding Effect of Electromagnetic Wave," Engineering, Vol. 3 No. 7, 2011, pp. 771-777. doi: 10.4236/eng.2011.37093.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] D. K. Cheng, “Field and Wave Electromagnetics,” Addison-Wesley Publishing Co., Boston, Jwang Yuan Publishing Co., Taipei, 1988.
[2] M. A. S. Oviedo, O. A. Araujo, R. Faez, M. C. Rezende and M. D. Paoli, “Antistatic Coating and Electromagnetic Shielding Properties of a Hybrid Material Based on Polyaniline/Organoclay Nanocomposite and EPDM Rubber,” Synthetic Metals, Vol. 156, No. 18-20, 2006, pp. 1249-1255. doi:10.1016/j.synthmet.2006.09.003
[3] M. R. Hernand and G. G. Karady, “Attenuation of Low Frequency Magnetic Fields Using Active Shielding,” Electric Power Systems Research, Vol. 45, No. 1, 1998, pp. 57-63. doi:10.1016/S0378-7796(97)01232-7
[4] E. Hakansson, A. Amiet, S. Nahavandi and A. Kaynak, “Electromagnetic Interference Shielding and Radiation Absorption in Thin Polypyrrole Films,” European Polymer Journal, Vol. 43, No. 1, 2007, pp. 205-213. doi:10.1016/j.eurpolymj.2006.10.001
[5] D. D. L. Chung, “Electromagnetic Interference Shielding Effectiveness of Carbon Materials,” Carbon, Vol. 39, No. 2, 2001, pp. 279-285. doi:10.1016/S0008-6223(00)00184-6
[6] K. K. S. Kumar, S. Geetha and D. C. Trivedi, “Freestanding Conducting Polyaniline Film for the Control of Electromagnetic Radiations,” Current Applied Physics, Vol. 5, No. 6, 2005, pp. 603-608. doi:10.1016/j.cap.2004.08.004
[7] S. Keeping and G. Zhenyn, “Laboratory Research on Shielding Effect of a Novel Conductive Cloth to Microwave Radiation,” Journal of Electrostatics, Vol. 252, 1998, pp. 125-129. doi:10.1016/S0304-3886(98)00032-1
[8] H. C. Lee, J. Y. Kim, C. H. Noh, K. Y. Song and S. H. Cho, “Selective Metal Pattern Formation and Its EMI Shielding Efficiency,” Applied Surface Science, Vol. 252, No. 8, 2006, pp. 2665-2672. doi:10.1016/j.apsusc.2005.03.206
[9] J. L. Huang, B. S. Yau, C. Y. Chen, W. T. Lo and D. F. Lii, “The Electromagnetic Shielding Effectiveness of Indium tin Oxide Films,” Ceramics International, Vol. 27, No. 3, 2001, pp. 363-365. doi:10.1016/S0272-8842(00)00088-2
[10] Z. Dou, G. Wu, X. Huang, D. Sun and L. Jiang, “Electromagnetic Shielding Effectiveness of Aluminum Alloy-Fly Ash Composites,” Composites: Part A, Vol. 38, 2007, pp. 186-191. doi:10.1016/j.compositesa.2006.01.015
[11] P. Lorrain and D. R. Corson, “Electromagnetic Fields and Waves,” W. H. Freeman and Company, New York, 1987.
[12] E. Hecht, “Optics,” Addison-Wesley Publishing Company, Boston, 2002.

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