Invention Grant
US08302492B2 Magnetostrictive torque sensor and electric power steering apparatus
有权
磁致伸缩转矩传感器和电动助力转向装置
- Patent Title: Magnetostrictive torque sensor and electric power steering apparatus
- Patent Title (中): 磁致伸缩转矩传感器和电动助力转向装置
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Application No.: US12755074Application Date: 2010-04-06
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Publication No.: US08302492B2Publication Date: 2012-11-06
- Inventor: Yasuo Shimizu
- Applicant: Yasuo Shimizu
- Applicant Address: JP Tokyo
- Assignee: Honda Motor Co., Ltd.
- Current Assignee: Honda Motor Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Carrier Blackman & Associates, P.C.
- Agent William D. Blackman; Joseph P. Carrier
- Priority: JP2009-101036 20090417
- Main IPC: G01L3/02
- IPC: G01L3/02
Abstract:
A magnetostrictive torque sensor includes a rotatable shaft rotatably supported by bearings, a magnetostrictive film disposed on the surface of the rotatable shaft, and a detecting coil that detects a change in a magnetic property of the magnetostrictive film. A hollow cylindrical ring is press-fitted over and fixed to the rotatable shaft near the magnetostrictive film, for example, near the right end of the magnetostrictive film.
Public/Granted literature
- US20100263962A1 MAGNETOSTRICTIVE TORQUE SENSOR AND ELECTRIC POWER STEERING APPARATUS Public/Granted day:2010-10-21
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