| 摘要 |
PROBLEM TO BE SOLVED: To provide a small magnetic detection device capable of improving the characteristics and a magnetic detecting method using the device. SOLUTION: The magnetic detection device is provided with two magnetoresistive element on an attachment surface nearly parallel with the pole face of the magnet and detects the variation of magnetic vector caused by a relative motion of the magnet to a detecting object facing the pole face. On the attachment surface, an arbitrary magnetic center axis passing the magnetic center is set and the two magnetoresistive elements are arranged one each of the two symmetrical positions to the magnetic center axis. The two magnetoresistive elements are placed by extending in one direction of which the sensing direction makes an angle of almost 45 degrees to the mangetic center axis. By using the two magnetoresistive elements, an equivalent circuit of a half-bridge is constituted. COPYRIGHT: (C)2006,JPO&NCIPI
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