Shielding effectiveness of mesh wire for 50Hz magnetic field

A wire mesh shield composed of thin conductive wires will influence the behaviour of electromagnetic fields within it. Many researchers have investigated electromagnetic field behaviour in solid metal, but little of this work has probed into the effects of a wire mesh. The primary goal of this wo...

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Main Author:	El-Shami, Ibtihal Fawzi
Format:	Thesis
Language:	English English English
Published:	2011
Subjects:	TK Electrical engineering Electronics Nuclear engineering TK7800-8360 Electronics
Online Access:	http://eprints.uthm.edu.my/2626/1/24p%20IBTIHAL%20FAWZI%20EL-SHAMI.pdf http://eprints.uthm.edu.my/2626/2/IBTIHAL%20FAWZI%20EL-SHAMI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/2626/3/IBTIHAL%20FAWZI%20EL-SHAMI%20WATERMARK.pdf
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id	my-uthm-ep.2626
record_format	uketd_dc
spelling	my-uthm-ep.26262021-11-01T03:30:42Z Shielding effectiveness of mesh wire for 50Hz magnetic field 2011-04 El-Shami, Ibtihal Fawzi TK Electrical engineering. Electronics Nuclear engineering TK7800-8360 Electronics A wire mesh shield composed of thin conductive wires will influence the behaviour of electromagnetic fields within it. Many researchers have investigated electromagnetic field behaviour in solid metal, but little of this work has probed into the effects of a wire mesh. The primary goal of this work is to design wire mesh shielding under overhead power lines to investigate the electromagnetic energy transmitted to the ground and possibly can exposed people under certain risk. The electromagnetic shielding of wire-mesh screens is discussed in the frequency range where the individual meshes are electrically small ( )1.0 <L λ . The screen, whose meshes are assumed to be square, its applicability to the measurement of mesh properties is described. The low-frequency magnetic shielding afforded by mesh enclosures is considered. Because of the reactive character of the mesh surface, the near field source shielding effectiveness decreases with increasing frequency. The enclosure magnetic-field shielding effectiveness increases with increasing frequency, but saturates at a maximum value that depends on the geometry of the mesh size, and the mesh wire radius. The enclosure electrostatic-field shielding effectiveness depends only on the enclosure and mesh geometries. Experimentally, shielding effectiveness measurements have been performed. The wire mesh Shields designed in different sizes to find the relation between mesh size and shielding effectiveness. 2011-04 Thesis http://eprints.uthm.edu.my/2626/ http://eprints.uthm.edu.my/2626/1/24p%20IBTIHAL%20FAWZI%20EL-SHAMI.pdf text en public http://eprints.uthm.edu.my/2626/2/IBTIHAL%20FAWZI%20EL-SHAMI%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/2626/3/IBTIHAL%20FAWZI%20EL-SHAMI%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Malaysia Fakulti Kejuruteraan Elektrik dan Elektronik
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TK Electrical engineering Electronics Nuclear engineering TK7800-8360 Electronics
spellingShingle	TK Electrical engineering Electronics Nuclear engineering TK7800-8360 Electronics El-Shami, Ibtihal Fawzi Shielding effectiveness of mesh wire for 50Hz magnetic field
description	A wire mesh shield composed of thin conductive wires will influence the behaviour of electromagnetic fields within it. Many researchers have investigated electromagnetic field behaviour in solid metal, but little of this work has probed into the effects of a wire mesh. The primary goal of this work is to design wire mesh shielding under overhead power lines to investigate the electromagnetic energy transmitted to the ground and possibly can exposed people under certain risk. The electromagnetic shielding of wire-mesh screens is discussed in the frequency range where the individual meshes are electrically small ( )1.0 <L λ . The screen, whose meshes are assumed to be square, its applicability to the measurement of mesh properties is described. The low-frequency magnetic shielding afforded by mesh enclosures is considered. Because of the reactive character of the mesh surface, the near field source shielding effectiveness decreases with increasing frequency. The enclosure magnetic-field shielding effectiveness increases with increasing frequency, but saturates at a maximum value that depends on the geometry of the mesh size, and the mesh wire radius. The enclosure electrostatic-field shielding effectiveness depends only on the enclosure and mesh geometries. Experimentally, shielding effectiveness measurements have been performed. The wire mesh Shields designed in different sizes to find the relation between mesh size and shielding effectiveness.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	El-Shami, Ibtihal Fawzi
author_facet	El-Shami, Ibtihal Fawzi
author_sort	El-Shami, Ibtihal Fawzi
title	Shielding effectiveness of mesh wire for 50Hz magnetic field
title_short	Shielding effectiveness of mesh wire for 50Hz magnetic field
title_full	Shielding effectiveness of mesh wire for 50Hz magnetic field
title_fullStr	Shielding effectiveness of mesh wire for 50Hz magnetic field
title_full_unstemmed	Shielding effectiveness of mesh wire for 50Hz magnetic field
title_sort	shielding effectiveness of mesh wire for 50hz magnetic field
granting_institution	Universiti Tun Hussein Malaysia
granting_department	Fakulti Kejuruteraan Elektrik dan Elektronik
publishDate	2011
url	http://eprints.uthm.edu.my/2626/1/24p%20IBTIHAL%20FAWZI%20EL-SHAMI.pdf http://eprints.uthm.edu.my/2626/2/IBTIHAL%20FAWZI%20EL-SHAMI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/2626/3/IBTIHAL%20FAWZI%20EL-SHAMI%20WATERMARK.pdf
_version_	1747830969782501376

Shielding effectiveness of mesh wire for 50Hz magnetic field

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