| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic anisotropy sensor capable of carrying out a stress measurement of an object to be measured which has a large stress gradient. SOLUTION: The magnetic anisotropy sensor which detects magnetic anisotropy of an object to be measured by applying an external magnetic field on the object to be measured made of a magnetic material, comprises: an exciting core 1 which is wound with an exciting coil 5 and has a pair of head sections for excitation 1a opposite to each other; and a detecting core 3 which is disposed orthogonally to the exciting core 1, is wound with a detecting coil 9 and has a pair of head sections for detection 3a opposite to each other. At least the spacing of the opposite head sections 1a of the exciting core 1 is formed so as to be narrower than that of a coil wound section 1b being wound with the coil. COPYRIGHT: (C)2006,JPO&NCIPI
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