PROBLEM TO BE SOLVED: To provide a single-sheet magnetic property tester capable of accurately measuring magnetic properties of an elastically or plastically deformed test piece.;SOLUTION: An excitation coil 300 and a flux density detection coil 400 are spirally wound around an outer periphery of a flexible winding frame 200 in such a way that the excitation coil 300 lies on the outer side and the flux density detection coil 400 lies on the inner side. A yoke 100 allows positions and orientations of magnetic pole surfaces thereof to be in contact with a test piece S to be varied. The winding frame 200 has a hollow space formed therethrough from one end to the other. The winding frame 200 is deformed along a shape of the test piece S inserted through the hollow space, and a portion of a sheet surface at one end of the test piece S and a portion of the sheet surface at the other end are aligned with the respective magnetic pole surfaces of the yoke 100. Then an excitation current is fed to the excitation coil 300 and induced electromotive force across two ends of the flux density detection coil 400 is measured.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT
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