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How to characterize soft magnetic materials by measuring magnetic flux density in a rotating field apparatus

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2 Author(s)
Y. Azzouz ; Lab. de Genie Electrique, Faculte des Sci. et Techniques Saint Jerome, Marseille, France ; A. Mouillet

This paper deals with the characterization of the magnetic permeability of soft magnetic materials under a rotating magnetic field. The paper reviews the principle of the rotating-flux-density device used for measurement of flux density, then describes the mathematical method used to calculate permeability from the measurements. The method combines direct and inverse solutions and is based on a functional minimization sequence. An example demonstrates the validity of the method. Finally, the paper discusses the uniqueness of the solution and its sensitivity

Published in:

IEEE Transactions on Magnetics  (Volume:38 ,  Issue: 3 )