发明申请
- 专利标题： Magnetostrictive torque sensor and method for manufacturing same
- 专利标题（中）： 磁致伸缩转矩传感器及其制造方法
-
申请号： US12080396申请日： 2008-04-02
-
公开(公告)号： US20080245161A1公开(公告)日： 2008-10-09
- 发明人: Yasuo Shimizu
- 申请人： Yasuo Shimizu
- 申请人地址： JP Tokyo
- 专利权人： Honda Motor Co., Ltd.
- 当前专利权人： Honda Motor Co., Ltd.
- 当前专利权人地址： JP Tokyo
- 优先权： JP2007-097870 20070403
- 主分类号： G01L3/00
- IPC分类号： G01L3/00 ; H01F7/06
摘要：
A magnetostrictive torque sensor for detecting a torque comprises an operating shaft, a first hollow shaft, a second hollow shaft, a first magnetostrictive film, and a second magnetostrictive film. Torque acts on the operating shaft from the outside. The first and second hollow shafts are fitted and fixed separately on the operating shaft. The first magnetostrictive film is formed on an external peripheral surface of the first hollow shaft while the second magnetostrictive film is formed on an external peripheral surface of the second hollow shaft.