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公开(公告)号：US20230152390A1
公开(公告)日：2023-05-18
申请号：US17920512
申请日：2021-05-05
发明人： Martin GOUVERNEUR , Thomas WOEHRLE
IPC分类号： G01R31/52 , G01R27/16 , H01M10/42 , H01M50/44 , H01M50/414 , H01M50/489 , H01M10/04
CPC分类号： G01R31/52 , G01R27/16 , H01M10/4285 , H01M50/44 , H01M50/414 , H01M50/489 , H01M10/0404
摘要： A method for detecting soft shorts in an electrode assembly includes the following steps. First, the electrode assembly having at least one anode and at least one cathode is provided, a separator having an open porosity being inserted between each anode and cathode. Subsequently, the impedance of the electrode assembly is measured and the measured impedance is compared with a reference value. A soft short is detected if the measured impedance deviates from the reference value. The electrode assembly is not laminated, and the impedance is measured prior to the introduction of electrolyte and the installation of the electrode assembly in a galvanic cell are provided. A test stand for the method and a production line using the test stand are disclosed.
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102.发明授权公开(公告)号：US11650240B2
公开(公告)日：2023-05-16
申请号：US17208995
申请日：2021-03-22
发明人： Yujie Yin , Mohammad Amin Zamani , Johannes Kruger , Hasan Bayat
CPC分类号： G01R31/085 , G01R27/16
摘要： Systems, methods, and computer-readable media are disclosed for impedance-based broken conductor detection in electric distribution systems. Upon the detection of a broken conductor, the affected overhead line will be de-energized before it hits the ground. An example method may include determining, during a first time period, a first impedance value measured by a first IED, and may further include determining, during a second time period that after the first time period, a second impedance value measured by the first IED. The method may further include determining a first ratio based on dividing a difference between the first impedance value and the second impedance value by the first impedance value, and may further include determining that the first ratio deviates from a threshold setpoint, and determining that a broken conductor condition occurs based on the first ratio deviating from the threshold setpoint.
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公开(公告)号：US11644494B1
公开(公告)日：2023-05-09
申请号：US17690402
申请日：2022-03-09
发明人： Chandra B. Prakash , Tejasvi Das , Siddharth Maru
摘要： Circuitry for driving a load, the circuitry comprising: driver circuitry; load sensing circuitry; and a parameter estimation engine, wherein the circuitry is operable in: a driving mode of operation in which the driver circuitry supplies a drive signal to a load coupled to the circuitry; and a load sensing mode of operation, for estimating a characteristic of a load coupled to the circuitry based on a signal output by the load sensing circuitry in response to a stimulus signal supplied to the driver circuitry, and wherein the circuitry is operable to perform a calibration operation in which the parameter estimation engine generates a circuit parameter for use in the load sensing mode based, at least in part, on a signal generated by the circuitry in response to a calibration stimulus signal supplied to the driver circuitry.
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公开(公告)号：US11578594B2
公开(公告)日：2023-02-14
申请号：US16651636
申请日：2017-12-21
发明人： Xiangnan Ye , Dale E. Jamison , Li Gao
摘要： Systems and methods for determining the composition of a drilling fluid using electro-rheology.
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105.发明申请公开(公告)号：US20230038377A1
公开(公告)日：2023-02-09
申请号：US17608838
申请日：2021-04-02
发明人： Yunghsiao CHUNG , Feng YU , Stephen Edward SADDOW
摘要： Examples of determining electronic component authenticity via electronic signal signature measurement are discussed. Reference pin identifiers corresponding to pins of a known authentic electronic component are determined. Measurement values corresponding to characteristics of pins of an electronic component are obtained, and pin identifiers based on the measurement values are generated. Accordingly, an indication that the electronic component is authentic can be provided based at least in part on a comparison of the pin identifiers and the reference pin identifiers.
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公开(公告)号：US20220413026A1
公开(公告)日：2022-12-29
申请号：US17897799
申请日：2022-08-29
申请人： Mahdi Davarpanah , Hamed Morsali
发明人： Mahdi Davarpanah , Hamed Morsali
摘要： A method for impedance measurement of coupled AC transmission lines. The method includes measuring a zero-sequence impedance of a three-phase transmission line that are configured to transmit electric power from a first substation of a power system to a second substation of the power system. Measuring the zero-sequence impedance includes disconnecting the three-phase transmission line from the power system, connecting a receiving end of the first three-phase transmission line to a local ground, connecting each phase of the three-phase transmission line at a sending end of the three-phase transmission line to a terminal node, measuring a zero-sequence current of the first three-phase transmission line, measuring a zero-sequence voltage of the three-phase transmission line, and calculating the zero-sequence impedance based on the zero-sequence current and the zero-sequence voltage.
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107.发明申请公开(公告)号：US20220308104A1
公开(公告)日：2022-09-29
申请号：US17834974
申请日：2022-06-08
申请人： S&C Electric Company
发明人： Yoav Sharon
摘要： A method for identifying a location of a fault in an electrical power distribution network that includes identifying an impedance of an electrical line between each pair of adjacent utility poles, measuring a voltage and a current of the power signal at a switching device during the fault, and estimating a voltage at each of the utility poles downstream of the switching device using the impedance of the electrical line between the utility poles and the measured voltage and current during the fault. The method calculates a reactive power value at each of the utility poles using the estimated voltages, where calculating a reactive power value includes compensating for distributed loads along the electrical line that consume reactive power during the fault, and determines the location of the fault based on where the reactive power goes to zero along the electrical line.
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108.发明申请公开(公告)号：US20220299557A1
公开(公告)日：2022-09-22
申请号：US17208995
申请日：2021-03-22
发明人： Yujie YIN , Mohammad Amin ZAMANI , Johannes KRUGER , Hasan BAYAT
摘要： Systems, methods, and computer-readable media are disclosed for impedance-based broken conductor detection in electric distribution systems. Upon the detection of a broken conductor, the affected overhead line will be de-energized before it hits the ground. An example method may include determining, during a first time period, a first impedance value measured by a first IED, and may further include determining, during a second time period that after the first time period, a second impedance value measured by the first IED. The method may further include determining a first ratio based on dividing a difference between the first impedance value and the second impedance value by the first impedance value, and may further include determining that the first ratio deviates from a threshold setpoint, and determining that a broken conductor condition occurs based on the first ratio deviating from the threshold setpoint.
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公开(公告)号：US20220232898A1
公开(公告)日：2022-07-28
申请号：US17722385
申请日：2022-04-17
发明人： Guangrong Lin , Xianbin Zheng , Xiyong Zhang
摘要： The disclosure provides an electronic cigarette capable of dose control and a control method thereof. The electronic cigarette includes a housing, a liquid storage chamber, a vaporizing device, a battery, an airflow sensor, and a control circuit. The control circuit includes a microcontroller, a power control unit, a timing unit, an energy statistics and conversion unit, and an indication unit. The microcontroller is preset with preset parameters including a preset dose threshold. The airflow sensor detects airflow during vaping, then the power control unit supplies power for a heating unit, and the timing unit starts timing, the power control unit detects power of the heating unit, the energy statistics and conversion unit calculates and converts consumption of electric energy into a dose of consumed cigarette liquid, when the dose of consumed cigarette liquid reaches the preset dose threshold, the indication unit provides an indication.
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公开(公告)号：US20220229100A1
公开(公告)日：2022-07-21
申请号：US17712466
申请日：2022-04-04
摘要： The present application relates to apparatus (400, 500) for measuring an impedance of an electrical load (300) that is configured to be coupled to a controlled current source (200). The apparatus (400, 500) comprises a first coupling node (402) configured to be coupled to a first terminal (302) of the load (300) and a second coupling node (404) configured to be coupled to a second terminal (304) of the load (300). The apparatus further comprises a transformer (406) having a primary winding (408) and a secondary winding (410) and a capacitance (412) connected in series between a first terminal (414) of the secondary winding (410) and the first coupling node (402). A second terminal (416) of the secondary winding (410) is connected to the second coupling node (404). The apparatus further comprises a processing unit (424) is configured to control an excitation signal that is applied to the primary winding (408) so as to cause a variation, corresponding to the excitation signal, in an input current of the load (300), measure the input current and an input voltage of the load (300), and, based on the measured input current and input voltage, determining the impedance of the load (300).
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