公开(公告)号：US20220187347A1

公开(公告)日：2022-06-16

申请号：US17425861

申请日：2020-01-16

申请人： SORAYTEC SCANDINAVIA

发明人： Harutyun SARGSYAN

IPC分类号： G01R21/08 ,  G01R15/14 ,  G01R15/20 ,  G01R15/18 ,  G01R31/08

摘要： A measuring unit for simultaneous measurement of two current values and two voltage values of a power line with three high-voltage conductors includes: three two-pole electrical interconnections, each interconnection being configured to be connected between two separated ends a high-voltage conductors; a first and second current sensor, configured and arranged to measure a current through the first interconnection and through the third interconnection respectively; and a first and second voltage sensor, configured and arranged to measure a voltage between the first and second interconnection and between the second and third interconnection. The measurement of the two current values and the two voltage values is at a floating potential. This measuring unit may be installed directly on all three phases, of a substation for example, with its own internal power source and with no ground connection. Such features are important for power systems with high penetration of variable renewable energy resources such as solar PV or wind.

公开(公告)号：US11237223B2

公开(公告)日：2022-02-01

申请号：US16521053

申请日：2019-07-24

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Jo Bito ,  Benjamin Stassen Cook ,  Dok Won Lee ,  Keith Ryan Green ,  Ricky Alan Jackson ,  William David French

IPC分类号： G01R33/00 ,  G01R33/07 ,  B32B15/04 ,  G01D5/14 ,  G01R15/20 ,  G01R33/06 ,  G01R21/08 ,  G01R33/02

摘要： A structure includes a substrate which includes a surface. The structure also includes a horizontal-type Hall sensor positioned within the substrate and below the surface of the substrate. The structure further includes a patterned magnetic concentrator positioned above the surface of the substrate, and a protective overcoat layer positioned above the magnetic concentrator.

公开(公告)号：US10802059B2

公开(公告)日：2020-10-13

申请号：US16083833

申请日：2017-03-10

申请人： Dius Computing Pty Ltd

发明人： Joe Losinno ,  Bernd Meyer ,  Zoran Angelovski ,  Johny Mattsson

IPC分类号： G01R21/08 ,  G01R15/20 ,  G01R33/02 ,  G01R21/133

摘要： Described embodiments generally relate to a method of determining power delivered by a cable, the method comprising receiving data related to a residual magnetic field produced by the cable; determining a proportionality factor relating the received data to the power delivered by comparing the residual magnetic field data to independently measured reference data related to the power delivered by the cable; and based on the proportionality factor, determining the power delivered by the cable.

公开(公告)号：US10024893B2

公开(公告)日：2018-07-17

申请号：US15658700

申请日：2017-07-25

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： Ronald Ambrosio ,  Younghun Kim ,  Tarun Kumar

IPC分类号： G08B21/00 ,  G01R21/08 ,  G01R15/20 ,  H04W88/02 ,  G06F1/32 ,  H04M19/04

摘要： A personal mobile system for detecting unsafe electrical power levels. Magnetic sensors detect a magnitude of a magnetic field produced by a power line. A GPS determines the location of the detected the magnetic field. A distance from the location of the detected the magnetic field is determined. In response to determining that the magnitude of the detected magnetic field produced by the power line exceeds the stored electrical power level threshold, based on the determined distance, an alert module produces an alert on the personal mobile system.

公开(公告)号：US09921080B2

公开(公告)日：2018-03-20

申请号：US14997070

申请日：2016-01-15

申请人： Datalogic IP Tech S.r.l.

发明人： Marco Pifferi ,  Alessio Riccardi

IPC分类号： G01B7/14 ,  G01B7/30 ,  G01R33/06 ,  H01L43/06 ,  G01D5/14 ,  G01D18/00 ,  G01R21/08 ,  G01R15/20 ,  G01R33/07

CPC分类号： G01D5/145 ,  G01D5/142 ,  G01D18/00 ,  G01R15/20 ,  G01R15/202 ,  G01R21/08 ,  G01R33/06 ,  G01R33/07 ,  G01R33/077 ,  H04M1/04 ,  H04M2250/12

摘要： A mounting assembly and method that utilize Hall effect sensors to detect orientation and insertion of a portable device in a base are provided. Hall effect sensors positioned on one of a portable device and a base are arranged to interact with one or more magnets positioned on the other of the portable device or the base such that a change in proximity of at least one of the magnets to at least one of the sensors will cause the sensor to output a voltage signal that differs depending on the nearness of the magnet. Depending on at least one of the magnitude of the signal, the profile of the signal over time, and the identity of the sensor that output the signal, it is determined whether the orientation of the portable device in the base is correct and/or if the portable device is fully inserted in the base.

公开(公告)号：US20170328935A1

公开(公告)日：2017-11-16

申请号：US15668448

申请日：2017-08-03

申请人： Smart Wires Inc.

发明人： Frank Kreikebaum ,  Paul Phillipsen ,  Stuart E. Ross ,  Yuli Starodubtsev

IPC分类号： G01R19/00 ,  G01R15/20 ,  G01R21/08

CPC分类号： G01R19/0092 ,  G01R15/202 ,  G01R15/207 ,  G01R21/08

摘要： A device for use in a power transmission system to sense GICs. The device may be a part of a reactance-injecting device on a power line, it may be a standalone device, or it may be a part of another type of device. The device may include a sensor to sense magnetic fields (e.g., a Hall effect sensor). The sensor may be positioned in the air gap of a magnetic core formed concentrically around the power line. The signal from the sensor may be converted to a digital signal and separately processed to determine the magnitude of the AC current and the magnitude of the DC (or quasi-DC) current. If the output signal of another NC current sensor is available, that output signal may be used to adjust/calibrate the determined magnitude of the DC current. The sensor may communicate with other devices in a network to provide GIC information.

公开(公告)号：US09395393B2

公开(公告)日：2016-07-19

申请号：US14228420

申请日：2014-03-28

申请人： FUJITSU COMPONENT LIMITED

发明人： Shigemi Kurashima ,  Shinichiro Akieda ,  Nobuyoshi Shimizu ,  Akio Nakamura ,  Naoyuki Nagao

IPC分类号： G01R1/20 ,  G01R11/30 ,  G01R15/20 ,  G01R19/20 ,  G01R21/08 ,  G01R11/06 ,  G01R1/22 ,  G01R33/028 ,  G01R15/18 ,  G01R33/07 ,  G05G9/047 ,  G06G7/162

CPC分类号： G01R15/202 ,  G01R1/20 ,  G01R1/22 ,  G01R11/06 ,  G01R15/20 ,  G01R19/20 ,  G01R21/08 ,  G01R33/0283 ,  G01R33/075 ,  G05G2009/04755 ,  G06G7/162

摘要： A current sensor includes semi-annular first and second magnetic cores, first and second sensors, and a differential output part. The first magnetic core is provided around a wire in which an electric current flows and includes a pair of first magnetic core parts each having a quarter annular shape. The first sensor is provided in the gap between the first magnetic core parts and detects a magnetic flux. The second magnetic core is provided around the wire and includes a pair of second magnetic core parts each having a quarter annular shape. The first and second magnetic cores form an annular magnetic core. The second sensor is provided in the gap between the second magnetic core parts and detects a magnetic flux. The differential output part outputs the differential output of the outputs of the first and second sensors.

摘要翻译： 电流传感器包括半环形的第一和第二磁芯，第一和第二传感器以及差动输出部件。 第一磁芯设置在电流流过的导线周围，并且包括一对具有四分之一环形的第一磁芯部分。 第一传感器设置在第一磁芯部分之间的间隙中并检测磁通量。 第二磁芯设置在电线周围，并且包括一对第二磁芯部件，每个第二磁芯部件具有四分之一环形形状。 第一和第二磁芯形成环形磁芯。 第二传感器设置在第二磁芯部分之间的间隙中并检测磁通量。 差分输出部分输出第一和第二传感器的输出的差分输出。

公开(公告)号：US20150301089A1

公开(公告)日：2015-10-22

申请号：US14646377

申请日：2013-11-21

申请人： SIRC CO., LTD.

发明人： Hiroaki TSUJIMOTO

IPC分类号： G01R15/20 ,  H01L43/08 ,  H01L43/02 ,  G01R21/08

CPC分类号： G01R15/205 ,  G01R21/08 ,  G01R33/09 ,  G01R33/096 ,  H01L43/02 ,  H01L43/08

摘要： When miniaturizing an ammeter or wattmeter, a magnetoresistance effect element given a barber-pole electrode could be considered an efficient device. It was considered that a barber-pole electrode formed at 45° with respect to an axis of easy magnetization (the longitudinal direction of a rectangular-shaped element) would be the most efficient. Current is refracted, however, when the current passes through the boundaries of substances with different conductivity, so a barber-pole electrode formed at 45° is not the most efficient. According to the invention, it is possible to provide a highly efficient magnetoresistance element having a rectangular magnetic film whereupon an axis of easy magnification is induced in the longitudinal direction, and a barber-pole electrode which is formed upon the magnetic film at an oblique angle θ to the longitudinal direction, where the magnetoresistance element takes into account current refraction at the boundary between the electrode and the magnetic film.

摘要翻译： 当电流表或瓦特计小型化时，给出理想极电极的磁阻效应元件可以被认为是有效的装置。 据认为，相对于容易磁化的轴（矩形元件的纵向）成45°的理想极电极将是最有效的。 然而，电流折射，当电流通过具有不同导电性的物质的边界时，因此以45°形成的理想极电极不是最有效的。 根据本发明，可以提供一种具有矩形磁性膜的高效磁阻元件，由此在纵向方向上引起容易放大的轴，并且以倾斜角度形成在磁性膜上的理想极电极 ＆thetas; 磁阻元件在电极和磁性膜之间的边界处考虑电流折射的纵向方向。

公开(公告)号：US6037763A

公开(公告)日：2000-03-14

申请号：US913500

申请日：1997-09-16

申请人： Janez Trontelj

发明人： Janez Trontelj

IPC分类号： G01R21/08 ,  G01R19/00 ,  G01R33/07

CPC分类号： G01R21/08

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.

摘要翻译： PCT No.PCT / GB96 / 00539 Sec。 371日期：1997年9月16日 102（e）1997年9月16日PCT PCT 1996年3月8日PCT公布。 公开号WO96 / 28739 日期1996年9月19日电表包括一个传感器，该传感器配有整流的交流电源信号，该传感器检测沿着导体的电流引起的磁场强度，并提供一个与正交和正负交变正弦关系之后的输出信号 登录每个半周期，由于DC偏移误差，输出信号被滤波以去除一个分量。

公开(公告)号：US6031369A

公开(公告)日：2000-02-29

申请号：US913501

申请日：1997-09-16

申请人： Janez Trontelj

发明人： Janez Trontelj

IPC分类号： G01R21/08 ,  G01R21/133

CPC分类号： G01R21/08 ,  G01R21/133

摘要： An electricity meter including a circuit which receives a first A.C. signal having a magnitude dependent on power passing through a conductor, and a mains A.C. signal. While the mains signal is positive, first pulses are generated at a rate dependent on the first A.C. signal. While the mains signal is negative, second pulses are generated at a rate dependent on the first A.C. signal. Pulses are counted over time, the sum of pulse counts being a measure of energy used.

摘要翻译： PCT No.PCT / GB96 / 00541 Sec。 371日期：1997年9月16日 102（e）1997年9月16日PCT PCT 1996年3月8日PCT公布。 公开号WO96 / 28740 日期1996年9月19日一种电表，包括接收具有取决于通过导体的功率的幅度的第一交流信号的电路和电源A.C.信号。 当电源信号为正时，第一脉冲以取决于第一交流信号的速率产生。 当电源信号为负时，第二脉冲以取决于第一交点信号的速率产生。 随着时间的推移计算脉冲，脉冲计数的总和是所用能量的量度。