发明授权
- 专利标题： Magnetic field angle sensor with GMR or MTJ elements
- 专利标题（中）： 具有GMR或MTJ元件的磁场角传感器
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申请号： US11881349申请日： 2007-07-26
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公开(公告)号： US07394247B1公开(公告)日： 2008-07-01
- 发明人: Yimin Guo , Grace Gorman , Po-Kang Wang
- 申请人： Yimin Guo , Grace Gorman , Po-Kang Wang
- 申请人地址： US CA Milpitas
- 专利权人： Magic Technologies, Inc.
- 当前专利权人： Magic Technologies, Inc.
- 当前专利权人地址： US CA Milpitas
- 代理机构： Saile Ackerman LLC
- 代理商 Stephen B. Ackerman
- 主分类号： G01R33/09
- IPC分类号： G01R33/09 ; G01B7/30
摘要：
The invention discloses a sensor for 360-degree magnetic field angle measurement. It comprises multiple GMR (or MTJ) stripes with identical geometries except for their orientations. These are used as the building blocks for a pair of Wheatstone bridges that signal the direction of magnetization of their environment. The design greatly enhances sensitivity within GMR stripes and does not require an additional Hall sensor in order to cover the full 360 degree measurement range.
公开/授权文献
- US2586761A Dispenser for insect-repellent material 公开/授权日：1952-02-19