公开(公告)号：US5670875A

公开(公告)日：1997-09-23

申请号：US627760

申请日：1996-03-29

申请人： Eugne D. Alfors ,  Ronald G. Cox ,  Edward D. Hoffman ,  Joseph K. Murdock

发明人： Eugne D. Alfors ,  Ronald G. Cox ,  Edward D. Hoffman ,  Joseph K. Murdock

IPC分类号： G01B7/30 ,  G01D5/14 ,  G01D18/00 ,  G01B7/14 ,  G01R35/00

CPC分类号： G01D5/145 ,  G01B7/30 ,  G01D18/00

摘要： An angular position sensor is provided with a rotatable magnet and first and second ferromagnetic pole pieces. The first ends of the ferromagnetic pole pieces are disposed on opposite sides of the rotatable permanent magnet and the second ends of the ferromagnetic pole pieces are arranged in overlapping association with a magnetically sensitive component disposed therebetween. First and second ferromagnetic inserts are provided which are movable with respect gaps between the permanent magnet and the first ends of the first and second pole pieces. By changing the relative positions between the first and second inserts and their respective gaps, the gain and offset of an output signal from the magnetically sensitive component can be altered to achieve predetermined characteristics.

摘要翻译： 角位置传感器设置有可旋转磁体和第一和第二铁磁极片。 铁磁极片的第一端设置在可旋转永磁体的相对侧上，铁磁极片的第二端与设置在它们之间的磁敏元件重叠地布置。 提供第一和第二铁磁插入件，其可以相对于永磁体和第一和第二极靴的第一端之间的间隙移动。 通过改变第一和第二插入件之间的相对位置及其各自的间隙，可以改变来自磁敏部件的输出信号的增益和偏移量以实现预定特性。