Eddy-current losses in thin magnetic sheet. Part 2: Measurements
作者:
B.E.Mulhall,
期刊:
Proceedings of the Institution of Electrical Engineers
(IET Available online 1964)
卷期:
Volume 111,
issue 1
页码: 188-192
年代: 1964
DOI:10.1049/piee.1964.0031
出版商: IEE
数据来源: IET
摘要:
Measurements are made of the initial permeability of iron and of certain high-permeability nickel-iron alloys over a frequency range extending to 30 Mc/s. The Polivanov-type eddy-current-loss calculations of Part 1 of the paper, intended to explain the eddy-current anomaly by considering a material with a magnetic-domain structure, are shown to be no more accurate than classical theory in predicting the behaviour of these specimens. In the thinnest Permalloys the high-frequency behaviour can be explained by a Snoek-type resonance phenomenon.
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