发明授权
US6037763A Electricity measurement apparatus using hall effect sensor having
rectified bias current
失效
使用具有整流偏置电流的霍尔效应传感器的电力测量装置
- 专利标题： Electricity measurement apparatus using hall effect sensor having rectified bias current
- 专利标题（中）： 使用具有整流偏置电流的霍尔效应传感器的电力测量装置
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申请号： US913500申请日： 1997-09-16
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公开(公告)号： US6037763A公开(公告)日： 2000-03-14
- 发明人: Janez Trontelj
- 申请人： Janez Trontelj
- 申请人地址： GBX
- 专利权人： Horstmann Timers & Controls Limited
- 当前专利权人： Horstmann Timers & Controls Limited
- 当前专利权人地址： GBX
- 优先权： GBX9505314 19950316
- 主分类号： G01R21/08
- IPC分类号： G01R21/08 ; G01R19/00 ; G01R33/07
摘要：
An electricity meter includes a sensor supplied with a rectified A.C. supply signal, the sensor detecting the strength of magnetic field induced by current flow along a conductor and providing an output signal following a sine-squared relation with alternating positive and negative sign in each half cycle, the output signal being filtered to remove a component due to D.C. offset error.
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