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1. 发明申请

US20120032666A1 METHOD AND SYSTEM OF MEASURING CURRENT IN AN ELECTRIC METER 有权
标题翻译：在电表中测量电流的方法和系统
公开(公告)号：US20120032666A1
公开(公告)日：2012-02-09
申请号：US12849877
申请日：2010-08-04
申请人： David Hamo
发明人： David Hamo
IPC分类号： G01R19/18
CPC分类号： G01R1/203 , G01R19/0092 , G01R35/005
摘要： A method and system for measuring the current flowing through an electric meter. The electric meter includes a reactive sensor positioned in series with a bus bar contained in the meter. The reactive sensor includes an inductor and the voltage across the inductance is measured. A control unit contained in the electric meter calculates the current based on the detected voltage and the value of the inductor. The value of the inductor is determined by passing a reference current through the inductor at a known frequency, such as 50 Hz or 60 Hz, and the voltage drop across the inductor is measured. Once the value of the inductor is determined, the value is stored in the control unit.
摘要翻译：一种测量流过电表的电流的方法和系统。电表包括与包含在仪表中的母线串联定位的电抗传感器。电抗传感器包括电感器，并测量电感两端的电压。包含在电表中的控制单元基于检测到的电压和电感器的值来计算电流。通过使参考电流以已知频率（例如50Hz或60Hz）通过电感器来确定电感器的值，并测量电感器两端的电压降。一旦确定了电感的值，该值就被存储在控制单元中。

2. 发明授权

US08847577B2 Method and system of measuring current in an electric meter 有权
标题翻译：电表测量电流的方法和系统
公开(公告)号：US08847577B2
公开(公告)日：2014-09-30
申请号：US12849877
申请日：2010-08-04
申请人： David Hamo
发明人： David Hamo
IPC分类号： G01R19/18 , G01R1/20 , G01R35/00 , G01R19/00
CPC分类号： G01R1/203 , G01R19/0092 , G01R35/005
摘要： A method and system for measuring the current flowing through an electric meter. The electric meter includes a reactive sensor positioned in series with a bus bar contained in the meter. The reactive sensor includes an inductor and the voltage across the inductance is measured. A control unit contained in the electric meter calculates the current based on the detected voltage and the value of the inductor. The value of the inductor is determined by passing a reference current through the inductor at a known frequency, such as 50 Hz or 60 Hz, and the voltage drop across the inductor is measured. Once the value of the inductor is determined, the value is stored in the control unit.
摘要翻译：一种测量流过电表的电流的方法和系统。电表包括与包含在仪表中的母线串联定位的电抗传感器。电抗传感器包括电感器，并测量电感两端的电压。包含在电表中的控制单元基于检测到的电压和电感器的值来计算电流。通过使参考电流以已知频率（例如50Hz或60Hz）通过电感器来确定电感器的值，并测量电感器两端的电压降。一旦确定了电感的值，该值就被存储在控制单元中。

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