DocumentCode
3420021
Title
Ferromagnetic Shielding Related to the Physical Properties of Iron
Author
Young, Frederick J.
Author_Institution
Westinghouse Research and Development Center Pittsburgh, Pa. 15235
fYear
1968
fDate
23-25 July 1968
Firstpage
88
Lastpage
95
Abstract
The reasons why a nonlinear mathematical treatment of the shielding effectiveness of iron is required are discussed. A brief traveling wave solution is given to the EMP shielding problem when iron material is used. It is estimated that a one mil thick HIPERNOM sheet can provide shielding against a 104 volts/meter EMP of 13 microseconds duration. It is shown that iron shields more effectively than copper. The shielding efficiency of several commercial grades of iron is measured in the frequency range of 30 Hertz to 57 Kilohertz. Various physical factors influencing shielding effectiveness in this frequency range are discussed.
fLanguage
English
Publisher
ieee
Conference_Titel
Electromagnetic Compatibility Symposium Record, 1968 IEEE
Conference_Location
Seattle, WA, USA
ISSN
0018-9375
Type
conf
DOI
10.1109/TEMC.1968.4307123
Filename
4307123
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