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Demagnetization effect of rectangular and ring-shaped samples made of electrical sheets placed in a stationary magnetic field

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1 Author(s)
Soinski, M. ; Sch. of Electr. Eng., South Australian Inst. of Technol., Adelaide, SA, Australia

The method of summation used for calculating magnetic-field strength is applied to determine the demagnetization coefficient of rectangular and ring-shaped samples made of an anisotropic electrical sheet and of isotropic silicon and silicon-free sheets. The calculations refer to a standard strip used in an Epstein test (of its shortening and contraction) and to the sample which is usually placed in an anisometer, i.e. in a homogeneous external magnetic field. Changes in the demagnetization coefficient are determined for different crystallographic orientation in the above-mentioned sheets. The relation between the magnetization direction of the ring-shaped sample and its demagnetization is affected. In the case of electrical steel strips, the results allow the determination of the real magnetization characteristics for the sample

Published in:

Instrumentation and Measurement, IEEE Transactions on  (Volume:39 ,  Issue: 5 )

Date of Publication:

Oct 1990

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