DocumentCode :
1402441
Title :
An investigation of the eddy-current anomaly in a low-silicon sheet steel
Author :
Aspden, H.
Volume :
104
Issue :
5
fYear :
1957
fDate :
3/1/1957 12:00:00 AM
Firstpage :
2
Lastpage :
7
Abstract :
The eddy-current anomaly effects in an 0.019 in thick low-silicon sheet steel are investigated and analysed on the basis of the magnetic inhomogeneity arising from ferromagnetic domain structure. This particular steel was chosen because previous experimental work had shown that inherent time-lag effects in the magnetization process were small. However, in such a steel, flux waveform distortion arising from hysteresis phenomena adds to the anomaly effect, and a special experimental technique by which such distortion effects could be eliminated from the analysis was developed. This made it possible to test the steel, focusing attention upon the anomaly effect attributable to the magnetic inhomogeneity. The results obtained are interpreted in terms of a hypothetical domain configuration, and it is concluded that the magnetic inhomogeneity arising from ferromagnetic domain structure does account for the eddy-current anomaly, distortion and time-lag effects being of minor importance.
Keywords :
eddy currents; magnetic materials;
fLanguage :
English
Journal_Title :
Proceedings of the IEE - Part C: Monographs
Publisher :
iet
ISSN :
0369-8904
Type :
jour
DOI :
10.1049/pi-c.1957.0002
Filename :
5244977
Link To Document :
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