It is needed to know magnetic properties under various stress and magnetic flux conditions in order to utilize electrical steel sheets effectively. In this paper, we examine a measurement method of the vector magnetic properties of a non-oriented electrical steel sheet under stress conditions. At first, an evaluation method of the stress is examined in order to control the amplitude and direction of principal stress in the plane of the non-oriented electrical steel sheet. In addition, the vector magnetic properties of the non-oriented electrical steel sheet are measured by applying the stress along the arbitrary direction. As these results, the difference of the magnetic anisotropy of the non-oriented electrical steel sheet is obtained due to the stress.
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