发明授权
- 专利标题: High-resolution magnetic encoder
- 专利标题(中): 高分辨率磁编码器
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申请号: US12550369申请日: 2009-08-29
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公开(公告)号: US08274277B2公开(公告)日: 2012-09-25
- 发明人: Andreas Dietzel , Marcus Breuer , Hubert Grimm , Karl-Heinz Lehnhert , Nikolaus Luckner , Rolf Schaefer , Guenther Michaelis
- 申请人: Andreas Dietzel , Marcus Breuer , Hubert Grimm , Karl-Heinz Lehnhert , Nikolaus Luckner , Rolf Schaefer , Guenther Michaelis
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理商 Jennifer Anda
- 优先权: EP03104380 20031126
- 主分类号: G01R33/12
- IPC分类号: G01R33/12 ; G11B5/84 ; G11B5/82
摘要:
A high-resolution magnetic encoder system includes a magnetic resistive sensor, a fixed suspension, and a mechanism. The magnetic resistive sensor is mounted to the fixed suspension above a magnetic medium having at least one magnetic track. The fixed suspension is attached to the mechanism, such as a housing, a substrate, and/or an electronic board. The sensor is adapted to perform a relative movement with respect to and in close contact to the surface of the magnetic medium. The magnetic medium may be protected by an overcoat layer. The magnetic resistive sensor may be Giant Magnetic-Resistive (GMR) sensor and/or a Tunneling Magnetic-Resistive Sensor (TMR).
公开/授权文献
- US20100045270A1 High-resolution magnetic encoder 公开/授权日:2010-02-25
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