发明名称 ANGLE SENSOR
摘要 PROBLEM TO BE SOLVED: To provide an angle sensor that can obtain an output signal proportional to relative rotary angle and be made compact at a low cost as much as possible. SOLUTION: This angle sensor 11 is provided with a first magnet M1 and a second magnet M2 different from the first magnet M1 that are fixed onto a rotary body 13, a galvanomagnetic element 15 that is fixed to a fixed member 14 in a manner to be arranged in a magnetic field generating between the first magnet M1 and second magnet M2, has magnetism sensing surfaces 15a and 15b vertical to sensing direction for sensing a magnetic flux, and outputs an electric signal corresponding to magnetic sensing direction element of the magnetic flux density, and correction yokes 16A and 16B. The correction yokes 16A and 16B are arranged opposite to the magnetism sensing surfaces 15a and 15b, and in case when the axial center of relative rotation between the fixed member 14 and rotary body 13 is Z axis, the axial center in the magnetism sensing direction crossing the Z axis is X axis, and the axial center in the certical direction to both Z and X axes is Y axis, the correction yokes 16A and 16B are arranged in a range of three fourth or less of an interval between the first magnet M1 and second magnet M2 in the X-axis direction, and a half or less of an interval therebetween in the Y-axis direction.
申请公布号 JP2003042709(A) 申请公布日期 2003.02.13
申请号 JP20010230555 申请日期 2001.07.30
申请人 AISIN SEIKI CO LTD 发明人 KATO YUKIHIRO;TAGUCHI KENICHI;TAGAWA SATOSHI
分类号 G01B7/30;G01B7/00;G01D3/02;G01D5/12;G01D5/14;G01D5/20;(IPC1-7):G01B7/30 主分类号 G01B7/30
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