公开(公告)号：US20150316591A1

公开(公告)日：2015-11-05

申请号：US14648243

申请日：2013-11-21

Applicant: OSAKA CITY UNIVERSITY ,  SIRC CO. LTD.

Inventor： Hiroaki TSUJIMOTO

IPC: G01R21/00 ,  G01R33/09

CPC classification number: G01R21/00 ,  G01R15/205 ,  G01R17/10 ,  G01R21/08 ,  G01R33/09 ,  G01R33/096

Abstract: An electrical power measurement device measures electrical power consumed in a circuit to be measured including a power source, a load, and a pair of electric wires connecting the power source with the load. The device includes a sensor unit including a plurality of the sensor parts including a magnetic element in which element terminals are formed at both ends of a magnetic film, a measurement resistor connected to the magnetic element in series, and a detecting means that detects a voltage change of the magnetic element and outputs a predetermined component; an addition means that adds the outputs of the detecting means of all of the sensor parts; and a fixing means that fixes the magnetic elements of the sensor parts, at equal distance positions from a virtual axis serving as a position reference at which the one electric wire is arranged, in a direction facing the virtual axis.

Abstract translation: 电力测量装置测量包括电源，负载和连接电源与负载的一对电线的被测电路中消耗的电力。 该装置包括传感器单元，该传感器单元包括多个传感器部件，该传感器部件包括磁性元件，磁性元件的两端形成有元件端子，串联连接到该磁性元件的测量电阻器，以及检测电压 磁性元件的变化并输出预定的元件; 添加装置，其增加所有传感器部件的检测装置的输出; 以及固定装置，其在与所述虚拟轴线相对的方向上，在与用于布置所述一根电线的位置基准的虚拟轴线相等的距离位置上固定所述传感器部件的所述磁性元件。

公开(公告)号：US20160223595A1

公开(公告)日：2016-08-04

申请号：US15029318

申请日：2014-09-10

Applicant: OSAKA CITY UNIVERSITY

Inventor： Hiroaki TSUJIMOTO

IPC: G01R15/20 ,  G01R19/00

Abstract: An electric current measurement apparatus for measuring an electric current flowing in a conducting wire in a circuit to be measured, the electric current measurement apparatus characterized by having a magnetic element to which a drive electric current terminal and a measurement voltage terminal are provided, a holder for fixing a positional relationship of the conducting wire to a magnetic body, an electric current source capable of outputting at least one frequency of alternating electric current across the drive electric current terminal, a voltage meter for measuring a voltage across the measurement voltage terminal, and a low-pass filter provided between the measurement voltage terminal and the voltage meter.

Abstract translation: 一种用于测量被测电路中的导线中流动的电流的电流测量装置，其特征在于具有设置有驱动电流端子和测量电压端子的磁性元件的电流测量装置， 用于将导线的位置关系固定在磁体上，能够输出跨越驱动电流端子的交流电流的至少一个频率的电流源，用于测量测量电压端子两端的电压的电压计，以及 设置在测量电压端子和电压表之间的低通滤波器。

公开(公告)号：US20170324445A1

公开(公告)日：2017-11-09

申请号：US15528477

申请日：2015-08-26

Applicant: OSAKA CITY UNIVERSITY

Inventor： Hiroaki TSUJIMOTO

IPC: H04B3/54 ,  H04J1/00

CPC classification number: H04B3/54 ,  H04B3/56 ,  H04J1/00 ,  H04Q9/00

Abstract: According to an aspect of the present invention, a drive control system is provided that includes a transmitting apparatus and a plurality of drive control apparatuses and drives and controls a plurality of devices to be controlled, wherein the transmitting apparatus includes: a control information addition apparatus that frequency-multiplexes a plurality of control signals, and an electric wire that supplies power and the plurality of control signals to the plurality of drive control apparatuses.

公开(公告)号：US20170003320A1

公开(公告)日：2017-01-05

申请号：US15125590

申请日：2015-03-20

Applicant: OSAKA CITY UNIVERSITY

Inventor： Hiroaki TSUJIMOTO

IPC: G01R1/22 ,  G01R15/20

CPC classification number: G01R1/22 ,  G01R15/186 ,  G01R15/202 ,  G01R15/207

Abstract: This clamp-type ammeter has a flexible substrate of which an inner wall is configured to be able to deform into a substantially cylindrical shape. The clamp-type ammeter has a plurality of magnetic sensor elements disposed at the inner wall of the flexible substrate. The clamp-type ammeter has a tube of which one end is connected to the flexible substrate. The clamp-type ammeter has an operation unit that is connected to the other end of the tube and that can operate the deformation of the flexible substrate.

Abstract translation: 该夹式电流表具有柔性基板，其内壁被构造成能够变形为基本上圆柱形的形状。 夹式电流表具有设置在柔性基板的内壁的多个磁传感器元件。 夹式电流表具有一端连接到柔性基板的管。 夹式电流表具有连接到管的另一端并且可以操作柔性基板的变形的操作单元。

公开(公告)号：US20210072044A1

公开(公告)日：2021-03-11

申请号：US16643389

申请日：2018-07-24

Applicant: UNIVERSITY PUBLIC CORPORATION OSAKA ,  SIRC CO., LTD.

Inventor： Hiroaki TSUJIMOTO ,  Fumio NAKATSUJI

IPC: G01D4/00 ,  G01D5/16

Abstract: An output system according to one aspect of the present invention includes a magnet disposed on an axis of a pointer of a gauge, first and second magnetic sensors that are each configured to have a sensitivity axial direction, and an output unit configured to output indicated value information generated based on detection values of the magnetic sensors. Also, first and second directions are set to intersect each other on the axis of the pointer, and the first magnetic sensor is disposed such that the sensitivity axial direction thereof extends in the first direction, and the second magnetic sensor is disposed such that the sensitivity axial direction thereof extends in the second direction.

公开(公告)号：US20160041209A1

公开(公告)日：2016-02-11

申请号：US14781418

申请日：2014-04-01

Applicant: SIRC Co., LTD

Inventor： Hiroaki TSUJIMOTO

IPC: G01R21/08 ,  G01R33/09

CPC classification number: G01R21/08 ,  G01R33/093 ,  H01L43/08

Abstract: A magnetoresistance effect type magnetic sensor has a problem in that the increase in the surrounding temperature decreases the magnetic characteristic of a magnetic film itself and thereby decreases the sensitivity of the sensor. A sensor element includes: a magnetic film having magnetoresistance effect; a pair of electrodes for applying an electric current to the magnetic film, the pair of electrodes being opposed across the magnetic film; a longitudinal bias magnetic field addition magnet to generate a first bias magnetic field in an opposing direction of the electrodes; and a lateral bias magnetic field addition magnet to generate a second bias magnetic field in an orthogonal direction to the longitudinal bias magnetic field addition magnet, in which a temperature characteristic of the longitudinal bias magnetic field addition magnet is higher than a temperature characteristic of the lateral bias magnetic field addition magnet.

Abstract translation: 磁阻效应型磁传感器的问题在于，周围温度的升高降低了磁性膜本身的磁特性，从而降低了传感器的灵敏度。 传感器元件包括：具有磁阻效应的磁性膜; 用于向磁性膜施加电流的一对电极，所述一对电极穿过所述磁性膜; 纵向偏置磁场添加磁体，以在电极的相反方向上产生第一偏置磁场; 以及横向偏置磁场添加磁体，以在与纵向偏置磁场添加磁体正交的方向上产生第二偏置磁场，其中纵向偏置磁场添加磁体的温度特性高于侧向 偏置磁场添加磁体。

公开(公告)号：US20150301089A1

公开(公告)日：2015-10-22

申请号：US14646377

申请日：2013-11-21

Applicant: SIRC CO., LTD.

Inventor： Hiroaki TSUJIMOTO

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

CPC classification number: G01R15/205 ,  G01R21/08 ,  G01R33/09 ,  G01R33/096 ,  H01L43/02 ,  H01L43/08

Abstract: 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.

Abstract translation: 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。