发明授权
- 专利标题: Magnetic rotation sensing for meter
- 专利标题(中): 用于仪表的磁旋转感测
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申请号: US12237884申请日: 2008-09-25
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公开(公告)号: US08138751B2公开(公告)日: 2012-03-20
- 发明人: Bruce H. Edwards
- 申请人: Bruce H. Edwards
- 申请人地址: US GA Alpharetta
- 专利权人: Cellnet Innovations, Inc.
- 当前专利权人: Cellnet Innovations, Inc.
- 当前专利权人地址: US GA Alpharetta
- 代理机构: Kilpatrick Townsend & Stockton LLP
- 主分类号: G01B7/30
- IPC分类号: G01B7/30
摘要:
Embodiments for rotation sensing are provided. A device may include a magnet apparatus including a first and a second magnet. The magnet apparatus may be configured to be coupled to a dial apparatus of a meter. The device may include a first magnetic field sensor and a second magnetic field sensor configured to be coupled to a dial cover. The magnetic field sensors may generate signals based upon the sensed magnetic fields. In some embodiments, the device may include logic for counting rotations and/or logic for detecting abnormal conditions such as a missing dial hand, missing dial cover, magnetic tampering and/or malfunctioning magnetic field sensors.
公开/授权文献
- US20100072990A1 Magnetic Rotation Sensing 公开/授权日:2010-03-25
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