公开(公告)号：USD551217S1

公开(公告)日：2007-09-18

申请号：US29255844

申请日：2006-03-14

申请人： Shuji Hagiwara ,  Hiroshi Tobita ,  Etsuko Enomoto ,  Naoki Tanaka ,  Yasuto Sekiguchi

设计人： Shuji Hagiwara ,  Hiroshi Tobita ,  Etsuko Enomoto ,  Naoki Tanaka ,  Yasuto Sekiguchi

公开(公告)号：US06753681B2

公开(公告)日：2004-06-22

申请号：US10125362

申请日：2002-04-19

申请人： Etsuko Enomoto ,  Yukihiro Kato

发明人： Etsuko Enomoto ,  Yukihiro Kato

IPC分类号： G01B730

CPC分类号： G01D5/145

摘要： To provide an angle sensor which can equalize the magnetic flux distribution while using inexpensive magnets manufactured easily and which can reduce the detection error even if the relative position between the magnetoelectric conversion element and the magnet changes. The permanent magnets M1a, M1b, M2a, M2b each of which is rectangular solid are fixed to the yoke 13 of the rotational angle displacement sensor 11. The permanent magnets M1a, M1b are separated from each other with a clearance L. The permanent magnets M1a, M1b are magnetized in such a manner that the side fixed to the flat wall portion 15a of the yoke 13 is N pole and that the side opposing to the fixed surface side is S pole. Further, the permanent magnets M2a, M2b are separated from each other with a clearance L. The permanent magnets M2a, M2b are magnetized in such a manner that the side fixed to the flat wall portion 15b of the yoke 13 is S pole and that the side opposing to the fixed surface side is N pole.

摘要翻译： 为了提供一种角度传感器，其可以使用容易制造的便宜的磁体来均衡磁通量分布，并且即使磁电转换元件和磁体之间的相对位置改变也能够降低检测误差。 永久磁铁M1a，M1b，M2a，M2b均固定在旋转角位移传感器11的磁轭13上。永久磁铁M1a，M1b以间隙L相互分离。永久磁铁M1a M1b被磁化，使得固定在磁轭13的平壁部15a的一侧为N极，与固定面侧相对的一侧为S极。 此外，永磁体M2a，M2b以间隙L彼此分离。永磁体M2a，M2b以固定在轭13的平壁部15b的一侧为S极的方式被磁化，并且， 与固定表面侧相对的一侧为N极。