DocumentCode
1438435
Title
Electromagnetic shielding effect of a set of concentric spheres in an alternating magnetic field
Author
El-Markabi, M.H.S. ; Freeman, E.M.
Author_Institution
Imperial College of Science and Technology, Department of Electrical Engineering, London, UK
Volume
126
Issue
12
fYear
1979
fDate
12/1/1979 12:00:00 AM
Firstpage
1338
Lastpage
1343
Abstract
A nonuniform-transmission-line analogy is employed to simplify the calculation of the axisymmetric electromagnetic field in, and hence the screening effect of, a set of concentric spherical shells excited by a coil carrying current in a circumferential direction only. The use of spherical Bessel functions is shown to be unnecessary. Various special cases are described together with experimental results to support the theory.
Keywords
electromagnetic fields; magnetic shielding; alternating magnetic field; axisymmetric electromagnetic field; concentric spherical shells; electromagnetic shielding; nonuniform transmission line analogy; screening;
fLanguage
English
Journal_Title
Electrical Engineers, Proceedings of the Institution of
Publisher
iet
ISSN
0020-3270
Type
jour
DOI
10.1049/piee.1979.0237
Filename
5252762
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