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公开(公告)号：US5185686A
公开(公告)日：1993-02-09
申请号：US676840
申请日：1991-03-28
CPC分类号： G01R31/08 , H02H1/0015
摘要： An arc detection method and apparatus is provided for an electric circuit having an electrified conductor (46) connecting a voltage source (26) to a load (30), the conductor having a line side extending from the arc detector to the voltage source, and a load side extending from the arc detector to the load. The arc detector includes a field sensor (62) sensing the electromagnetic field established about the conductor by the occurrence of an electrical arc in the circuit, and generating a field responsive signal in response thereto. Direction sensing circuitry detects whether the arc is from the load side or the line side, and generates a direction indicative signal.
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公开(公告)号：US5185687A
公开(公告)日：1993-02-09
申请号：US676739
申请日：1991-03-28
CPC分类号： H02H1/0015
摘要： An arc detection method and apparatus is provided for an electric circuit having an electrified conductor (46) connecting a voltage source (26) to a load (30). The arc detector includes a field sensor (62) sensing an electromagnetic field established about the conductor by the occurrence of an electrical arc in the electric circuit, and generating a field responsive signal in response thereto. Arc discrimination circuitry responds to the field sensor and generates an arc indicative signal in response to a random chaotic pattern of the field responsive signal.
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公开(公告)号：US5185684A
公开(公告)日：1993-02-09
申请号：US676738
申请日：1991-03-28
CPC分类号： H02H1/0015 , G01R15/181 , G01R29/12 , G01R31/08
摘要： An arc detection method and apparatus is provided for an electric circuit having an electrified conductor (46) connecting a voltage source (26) to a load (30). A field sensor senses an electromagnetic field established about the conductor by the occurrence of an electrical arc in the circuit, and generates a field responsive signal. Arc discrimination circuitry includes frequency responsive circuitry responding to the field sensor and generating an arc indicative signal in response to a given frequency characteristic of the field responsive signal. The frequency responsive circuitry monitors a plurality of different frequencies of the field responsive signal, and generates the arc indicative signal in response to a given combination of field responsive signal frequencies. A comb filter passes the field responsive signal through a plurality of passbands, and the arc indicative signal is generated in response to a given frequency signature of the field responsive signal.
摘要翻译： 为具有将电压源（26）连接到负载（30）的带电导体（46）的电路提供电弧检测方法和装置。 场传感器通过在电路中发生电弧来感测建立在导体周围的电磁场，并产生场响应信号。 电弧鉴别电路包括响应于现场传感器的频率响应电路并响应于场响应信号的给定频率特性产生电弧指示信号。 频率响应电路监测场响应信号的多个不同频率，并且响应于场响应信号频率的给定组合产生电弧指示信号。 梳状滤波器通过多个通带通过场响应信号，并且响应于场响应信号的给定频率特征产生电弧指示信号。
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公开(公告)号：US5208542A
公开(公告)日：1993-05-04
申请号：US676742
申请日：1991-03-28
CPC分类号： H02H1/0015
摘要： An arc detection method and apparatus is provided for an electric circuit having an electrified conductor (46) connecting a voltage source (26) to a load (30). The arc detector includes a field sensor (62) sensing an electromagnetic field established about the conductor by the occurrence of an electrical arc in the circuit, and generating a field responsive signal in response thereto. Arc discrimination circuitry responds to the field sensor and generates a tentative arc signal in response to a given characteristic of the field responsive signal. Arc timing window circuitry responds to the arc discrimination circuitry and generates a confirmed arc signal in response to a given timing characteristic of the tentative arc signal.
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公开(公告)号：US4857837A
公开(公告)日：1989-08-15
申请号：US139352
申请日：1987-12-29
申请人： Mich S. Baran , Bruce C. Beihoff , Michael A. Damiano , James E. Hansen , Jerome K. Hastings , Allen J. Slomczewski , Charles J. Tennies
发明人： Mich S. Baran , Bruce C. Beihoff , Michael A. Damiano , James E. Hansen , Jerome K. Hastings , Allen J. Slomczewski , Charles J. Tennies
CPC分类号： G01R1/06766 , G01R15/205
摘要： The present invention is a current sensor employing a magneto resistive sensor having high fidelity of output. This current sensor includes a magnetic flux concentrator substantially encircling the electrical conductor having magnetic sensing, a magnetic device generating a magnetic field component along an axis offset from the principle axis, a magneto resistive device disposed in the magnetic sensing region, a constant current source supplying a predetermined constant current to said magneto resistive device, and a voltage sensing circuit connected to said magneto resistive device for measuring resistance by measuring a difference voltage induced by said constant current. This measured voltage corresponds to the current through the conductor. The magneto resistive device is formed as a Wheatstone bridge having a first and second pair of opposite terminals. The constant current source provides a predetermined constant current whereby the change with temperature in the differential voltage between said second pair of terminals is equal and opposite to the change in voltage of the total bridge resistance with temperature and the change in the bridge offset voltage with temperature.
摘要翻译： 本发明是采用具有高保真输出的磁阻传感器的电流传感器。 该电流传感器包括基本上环绕具有磁感测的电导体的磁通量集中器，沿着与主轴偏离的轴产生磁场分量的磁性装置，设置在磁感应区域中的磁阻元件，恒流源 向所述磁阻器件施加预定的恒定电流，以及连接到所述磁阻器件的电压检测电路，用于通过测量由所述恒定电流引起的差值电压来测量电阻。 该测量电压对应于通过导体的电流。 磁阻电阻器形成为具有第一和第二对相对端子的惠斯通电桥。 恒定电流源提供预定的恒定电流，由此在所述第二对端子之间的差分电压中随温度的变化等于并且与总桥电阻随温度变化的电压和桥接偏移电压随温度的变化相反 。
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6.发明授权Current transformer using a laminated toroidal core structure and a lead frame 失效电流互感器使用层叠环形芯结构和引线框架
公开(公告)号：US5430613A
公开(公告)日：1995-07-04
申请号：US69338
申请日：1993-06-01
申请人： Jerome K. Hastings , Bruce C. Beihoff , James E. Hansen , Mark A. Juds , Steven C. Kaishian , Charles J. Tennies
发明人： Jerome K. Hastings , Bruce C. Beihoff , James E. Hansen , Mark A. Juds , Steven C. Kaishian , Charles J. Tennies
CPC分类号： H01F41/16 , H01F1/0027 , H01F17/0033 , H01F2027/2814 , H01F2038/305 , Y10T29/4902 , Y10T29/49073 , Y10T29/49078 , Y10T29/4981
摘要： A current transformer device is formed on a ceramic substrate which is provided with a plurality of planar conductive tracks formed on a surface of the substrate where the conductive tracks extend substantially radially from an imaginary point on the surface of the substrate. A structure of permeable material layers is then tape cast or epitaxially formed by vapor deposition of a thick film of magnetic ceramic over the major portion of each of the conductive tracks to form a permeable toroidal core. A lead frame is then placed over the core and a plurality of metal conductors are soldered to each of the respective exposed ends of the metal conductive tracks on the substrate to form a toroidal coil surrounding the toroidal core. The required electrical elements to complete the current transformer device are mounted to a second side of the ceramic substrate and electrically connected to the toroidal coil for powering and/or receiving signals therefrom.
摘要翻译： 电流互感器装置形成在陶瓷基片上，该陶瓷基片上设有形成在基片表面上的多个平面导电迹线，导电迹线从基片表面的假想点基本径向延伸。 然后通过在每个导电轨道的主要部分上蒸镀一层厚厚的磁性陶瓷，将可渗透材料层的结构胶带或外延形成，以形成可渗透的环形芯。 然后将引线框放置在芯上，并且将多个金属导体焊接到衬底上的金属导电轨道的相应暴露端中的每一个，以形成环绕环形芯的环形线圈。 完成电流互感器装置的所需电气元件安装在陶瓷基片的第二侧上，并电连接到环形线圈，用于向其提供和/或接收信号。
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7.发明授权Current transformer using a laminated toroidal core structure and a lead frame 失效电流互感器使用层叠环形芯结构和引线框架
公开(公告)号：US5425166A
公开(公告)日：1995-06-20
申请号：US277403
申请日：1994-07-19
申请人： Jerome K. Hastings , Bruce C. Beihoff , James E. Hansen , Mark A. Juds , Steven C. Kaishian , Charles J. Tennies
发明人： Jerome K. Hastings , Bruce C. Beihoff , James E. Hansen , Mark A. Juds , Steven C. Kaishian , Charles J. Tennies
CPC分类号： H01F41/16 , H01F1/0027 , H01F17/0033 , H01F2027/2814 , H01F2038/305 , Y10T29/4902 , Y10T29/49073 , Y10T29/49078 , Y10T29/4981
摘要： A current transformer device is formed on a ceramic substrate which is provided with a plurality of planar conductive tracks formed on a surface of the substrate where the conductive tracks extend substantially radially from an imaginary point on the surface of the substrate. A structure of permeable material is then tape cast or epitaxially formed by vapor deposition of a thick film of magnetic ceramic over the major portion of each of the conductive tracks to form a permeable toroidal core. A lead frame is then placed over the core and a plurality of metal conductors are soldered to each of the respective exposed ends of the metal conductive tracks on the substrate. The required electrical elements to complete the current transformer device are mounted to a second side of the ceramic substrate and electrically connected to the toroidal coil for powering and/or receiving signals therefrom.
摘要翻译： 电流互感器装置形成在陶瓷基片上，该陶瓷基片上设有形成在基片表面上的多个平面导电迹线，导电迹线从基片表面的假想点基本径向延伸。 然后通过在每个导电轨道的主要部分上蒸镀一层厚厚的磁性陶瓷，将可渗透材料的结构胶带或外延形成，以形成可渗透的环形芯。 然后将引线框架放置在芯上，并且将多个金属导体焊接到衬底上的金属导电轨道的相应的暴露端中的每一个。 完成电流互感器装置的所需电气元件安装在陶瓷基片的第二侧上，并电连接到环形线圈，用于向其提供和/或接收信号。
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公开(公告)号：US5185685A
公开(公告)日：1993-02-09
申请号：US676741
申请日：1991-03-28
申请人： Charles J. Tennies , Bruce C. Beihoff , Jerome K. Hastings , Robert J. Clarey , Walter K. O'Neil
发明人： Charles J. Tennies , Bruce C. Beihoff , Jerome K. Hastings , Robert J. Clarey , Walter K. O'Neil
CPC分类号： H02H1/0015
摘要： An arc detection method and apparatus is provided for an electric circuit having an electrified conductor (46) connecting a voltage source (26) to a load (30). The system senses the electromagnetic field established about the conductor by the occurrence of an electrical arc in the electric circuit, and generates a field responsive signal. Arc discrimination circuitry responding to the field responsive signal and generates an arc indicative signal in response to a given characteristic of the field responsive signal. The system includes an E field sensor (66) and a B field sensor (68).
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公开(公告)号：US5206596A
公开(公告)日：1993-04-27
申请号：US676781
申请日：1991-03-28
CPC分类号： H02H1/0015
摘要： An arc detector antenna transducer (62) for an electric circuit has an electrified conductor (46) connecting a voltage source (26) to a load (30). The arc detector transducer includes an E field sensor (66) sensing the E field established about the conductor by the occurrence of an electrical arc in the circuit, and a B field sensor (68) sensing the B field established about the conductor by the occurrence of the electrical arc in the circuit.
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公开(公告)号：US4841235A
公开(公告)日：1989-06-20
申请号：US61351
申请日：1987-06-11
IPC分类号： G01R15/20
CPC分类号： G01R15/205
摘要： A current sensor (10) comprising spaced pole pieces (62, 64) and a magnetic shunt (80) bridging the pole pieces within an insulating housing assembly (12) which also contains a magnetoresistive transducer (90) and electronic circuitry (16) for sensing magnetic field intensity between the pole pieces and relating that intensity as electric signals provided at terminals (26) at the exterior of the housing. The transducer senses magnetic field intensity along a principal axis (88). Permanent magnets (94, 96) or induction coils (276, 278) are provided to establish a biasing component of magnetic field intensity along an axis (98) substantially normal to the principal axis to improve sensor sensitivity, range of operation and immunity to current overload.
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