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公开(公告)号：US09562932B2
公开(公告)日：2017-02-07
申请号：US14509889
申请日：2014-10-08
发明人： Hiroyuki Hebiguchi , Isao Sato
CPC分类号： G01R19/0092 , G01R1/18 , G01R15/20 , G01R15/207 , G01R33/07 , G01R33/09
摘要： A current sensor includes a folded-shaped current path including a pair of arm portions extending in parallel with each other, and a pair of magnetoelectric conversion elements provided so as to sandwich therebetween a symmetric axis passing between the pair of arm portions, the pair of magnetoelectric conversion elements being used for detecting magnetism caused by a current passing through the pair of arm portions, wherein a half-bridge circuit in which the pair of magnetoelectric conversion elements is series-connected and a signal is able to be extracted from a connection point between the pair of magnetoelectric conversion elements is formed, and sensitivity axes of the pair of magnetoelectric conversion elements are oriented in a same direction and sensitivity-influencing axes of the pair of magnetoelectric conversion elements are oriented in a same direction.
摘要翻译： 电流传感器包括折叠形电流路径，其包括彼此平行延伸的一对臂部分，以及一对磁电转换元件，其设置成夹在其间通过一对臂部之间的对称轴线，所述一对 磁电转换元件用于检测通过一对臂部分的电流引起的磁场，其中，一对电磁转换元件串联连接并且能够从连接点提取信号的半桥电路 形成一对磁电转换元件之间，并且一对磁电转换元件的灵敏轴定向成相同的方向，并且该对磁电转换元件的灵敏度影响轴被定向在相同的方向。
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公开(公告)号：US10156589B2
公开(公告)日：2018-12-18
申请号：US15389869
申请日：2016-12-23
发明人： Hiroyuki Hebiguchi
摘要： An output of a first sensor having a low sensitivity and an output of the second sensor having a high sensitivity are compared with each other, and thus it is determined whether a physical quantity becomes larger than a maximum value of a physical quantity capable of being measured in the second sensor. A sensor module is provided which is configured to switch a plurality of sensors capable of measuring different ranges and to extend a dynamic range by selecting the output of the second sensor in a selection unit in a case where the output of the first sensor and the output of the second sensor are coincident with each other, and selecting the output of the first sensor in the selection unit in a case where the output of the first sensor and the output of the second sensor are not coincident with each other.
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公开(公告)号：US10254313B2
公开(公告)日：2019-04-09
申请号：US15718950
申请日：2017-09-28
发明人： Hiroyuki Hebiguchi
摘要： A noncontact voltage measurement apparatus includes a sensing electrode to which a voltage corresponding to an alternating current voltage is applied, a feedback electrode, a conductive movable body that is supported so as to be displaceable in accordance with the Coulomb force generated between the movable body and the sensing electrode and the Coulomb force generated between the movable body and the feedback electrode, an elastic force for causing the movable body to return to a predetermined neutral position acting on the movable body, a displacement detection unit configured to detect a displacement of the movable body, a voltage applying unit configured to apply an alternating current voltage to the feedback electrode, and a control unit configured to control the voltage to be output from the voltage applying unit such that a detection result of the displacement from the displacement detection unit approaches a predetermined reference value.
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公开(公告)号：US09638760B2
公开(公告)日：2017-05-02
申请号：US14670190
申请日：2015-03-26
发明人： Hiroyuki Hebiguchi
IPC分类号： G01N27/416 , G01R31/36 , H01M10/48
CPC分类号： G01R31/3675 , G01R31/3606 , G01R31/3624 , G01R31/3662 , G01R31/3679 , H01M10/48 , H01M10/486
摘要： In a storage device state detection method in which the SOH or SOC of the storage device is inferred from the internal impedance of the storage device: the internal resistance of the storage device is measured by using a signal with a first frequency at which the internal impedance is reduced as a temperature is raised, and the initial SOH or initial SOC of the storage device is calculated from the measured value of the internal resistance; the internal impedance is measured by using a signal with a second frequency at which the internal impedance is increased as a temperature is raised, and the internal temperature of the storage device is calculated from the measured value of the internal impedance; and the SOH or SOC is inferred by using the calculated value of the internal temperature to correct the initial SOH or initial SOC.
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公开(公告)号：US10241137B2
公开(公告)日：2019-03-26
申请号：US15370488
申请日：2016-12-06
发明人： Hiroyuki Hebiguchi
摘要： First and second magnetic detection units are disposed at positions where an S/N ratio, which is a ratio between the strength of a magnetic field generated by a current to be measured flowing through a current path and the strength of an external magnetic field, is the same. A processing unit determines a normal operation state in a case where the detection signal of the first magnetic detection unit and the detection signal of the second magnetic detection unit approximately match each other. The processing unit determines that either one of the first and second magnetic detection units has failed in a case where the detection signals do not match each other.
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公开(公告)号：US10228395B2
公开(公告)日：2019-03-12
申请号：US15719161
申请日：2017-09-28
发明人： Hiroyuki Hebiguchi
IPC分类号： G01R19/00 , G01R15/16 , G01R19/165 , G01R21/00
摘要： In a non-contact voltage measurement device that can precisely measure an alternating-current voltage with a simple structure, a first capacitor and second capacitor, having mutually correlated capacitances, are respectively formed between a first electrode and a conductor and between a second electrode and the conductor. An alternating-current signal is given between the first electrode and a first reference potential. When a switch is off, a first charge detecting signal matching charges accumulated in the second capacitor by the alternating-current signal is created with the second electrode kept at the first reference potential. When the switch is on, a second charge detecting signal matching charges accumulated in the second capacitor by the alternating-current voltage is created with the second electrode kept at a second reference potential. A measurement of the alternating-current voltage is calculated in a calculating unit, according to the first charge detecting signal and second charge detecting signal.
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