| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide magnetic characteristics distribution estimation method of a magnetic material, capable of quantitatively expressing microscopic magnetic characteristics distribution, and to provide a quality evaluation method using it. SOLUTION: In an excitation process of a magnetic circuit and a magnetic material excited by a drive coil, the magnetic characteristics of respective image points are estimated by two or more visualized images made to correspond to the excited state, so that two-dimensional or three-dimensional magnetic characteristics distribution of the magnetic material is estimated. When an image average magnetic flux density is known in the two or more visualized images of the excited state, it is desirable that the magnetic flux density be determined, using the known magnetic flux density by the image processing and that the Helmholtz equation be used for the estimation of the magnetic characteristics.</p> |
