发明授权
- 专利标题: Method for sensing electrical current
- 专利标题(中): 感应电流的方法
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申请号: US09406364申请日: 1999-09-28
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公开(公告)号: US06188322B1公开(公告)日: 2001-02-13
- 发明人: Jun Jason Yao , Gerard J. Sullivan , Robert J. Anderson
- 申请人: Jun Jason Yao , Gerard J. Sullivan , Robert J. Anderson
- 主分类号: G08B2100
- IPC分类号: G08B2100
摘要:
A method is provided for sensing and measuring an electrical current. The current to be measured is applied to a deflectable member in a sensing module in the presence of a magnetic field. Deflection of the member is detected as an indication of the current. A nulling current may be applied to one or more additional deflectable members mechanically linked to the deflectable member. Feedback or readout signals indicative of deflection of the members are monitored. The nulling current is modulated to drive the feedback signals to a desired level. The nulling current value is converted to a value representative of the current to be measured.
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