发明名称 MON-CONTACT TYPE POSITION SENSOR
摘要 PROBLEM TO BE SOLVED: To provide a highly accurate sensor for reducing the linear error of output from a magnetic sensitive element accompanying the rotation of a magnetic generation body and simplifying the constitution of a magnetic circuit suitable for use in an automobile, in a non-contact type position sensor for detecting a rotary displacement position and a linear displacement position. SOLUTION: The magnetic generation body 1 arranged on a rotary shaft 8 rotated in response to a rotating operation from the outside and magnetized in a vertical direction to the rotary shaft 8 is surrounded by a first yoke 2a and a second yoke 2b through an air gap 7, in a direction orthogonal to the rotary shaft 8 and housed rotatably around the inner periphery of the yoke. The magnetic sensitive element 4 is arranged in a first gap 3a opposedly formed under the first yoke 2a and the second yoke 2b parallelly formed on a first plane passing through the rotary shaft 8, and a magnetic body 5 for constituting a magnetic bypass means under a second gap 6 smaller than the first gap 3a is arranged near the first gap 3a.
申请公布号 JP2001133210(A) 申请公布日期 2001.05.18
申请号 JP19990316728 申请日期 1999.11.08
申请人 MATSUSHITA ELECTRIC IND CO LTD 发明人 ODAJIMA YOSHIMITSU
分类号 G01B7/30;G01B7/00;G01D5/20;(IPC1-7):G01B7/30 主分类号 G01B7/30
代理机构 代理人
主权项
地址