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公开(公告)号：US11585839B2
公开(公告)日：2023-02-21
申请号：US17040555
申请日：2019-03-04
发明人： Tadashi Takahashi
摘要： A resistance measuring device includes: a first jig; a plurality of first contacts; a second jig; a plurality of second contacts; a resistance measuring unit that supplies a current between a first contact and a second contact, which correspond to each other, detects a voltage between a first contact and a second contact, and calculates a resistance value of an object to be measured based on a relationship between a value of the supplied current and a value of the detected voltage; first wirings connecting the resistance measuring unit and each of the first contacts, for the first contacts, respectively; and second wirings connecting the resistance measuring unit and each of the second contacts while passing from the resistance measuring unit through the first jig, for the second contacts, respectively.
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公开(公告)号：US11567111B2
公开(公告)日：2023-01-31
申请号：US16681586
申请日：2019-11-12
申请人： Setra Systems, Inc.
IPC分类号： G01R22/06 , H05K5/02 , G01R15/00 , H05K5/00 , G01R13/02 , G01R19/165 , G01R19/25 , G01R19/257
摘要： A measurement device providing a graphical user interface (GUI) to a user on a remote terminal comprising at least one first processor; and at least one first memory including one or more first sequences of instructions to perform the steps of transmitting a GUI displaying a at least one of a first, a second, a third, and a fourth image in response to at least one of a voltage characteristic, a current characteristic, and a load characteristic obtained from the user through the GUI on the remote terminal. Then, the measurement device stores in a memory the at least one of the voltage characteristic, the current characteristic, and the load characteristic.
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公开(公告)号：US11372026B2
公开(公告)日：2022-06-28
申请号：US16672753
申请日：2019-11-04
发明人： Jae Joon Kim , Subin Choi
摘要： A resistance measuring device includes an amplifying unit including an amplifier, a first and a second current supply unit, a voltage detection unit, and a controller. The controller controls the voltage detection unit to detect a first output voltage of an output terminal of the amplifier in a state where the current of the first current source flows in a forward direction to a measurement target resistor by controlling the first current supply unit, controls the voltage detection unit to detect a second output voltage of the output terminal of the amplifier in a state where the current of the second current source flows in a reverse direction to the measurement target resistor by controlling the second current supply unit, and calculates a resistance value of the measurement target resistor based on the detected first output voltage and the detected second output voltage.
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公开(公告)号：US20210382100A1
公开(公告)日：2021-12-09
申请号：US16895385
申请日：2020-06-08
发明人： Po-Yin Chao , Shui-Chu Lee , Yu-Wei Chuang
摘要： The present invention discloses an AC impedance measurement circuit with a calibration function, which is characterized in that only one calibration impedance is needed, associated with a switch circuit. Based on the measurement results of the two calibration modes, an equivalent impedance of the switch circuit, circuit gain and phase offset can be calculated. Based on the above results, the equivalent impedance of the internal circuit is deducted from the measurement result of the measurement mode to accurately calculate an AC conductance and a phase of the AC conductance for impedance to be measured. In addition, by adjusting a phase difference between an input sine wave signal and a sampling clock signal, impedance of the same phase and impedance of the quadrature phase can be obtained, respectively, and the AC impedance and phase angle of the impedance to be measured can be calculated.
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公开(公告)号：US11181585B2
公开(公告)日：2021-11-23
申请号：US16550586
申请日：2019-08-26
发明人： Yuan Yao
IPC分类号： G01R15/00 , G01R31/3842 , G01R31/392
摘要： A method for detecting state of health of a battery of an electronic device is provided. An initial capacity of the battery is obtained when the battery is charged or discharged with a predetermined current and in a predetermined temperature, and a first State of Charge (SOC) value is calculated when the battery is discharged to a discharge cutoff voltage. An available capacity of the battery is calculated with the predetermined current and in the predetermined temperature based on a maximum capacity of the battery, the first State of Charge value, and a second State of Charge value, and a capacity fade is obtain based on a ratio of the available capacity and the initial capacity. Thus, the state of health is detected based on the capacity fade.
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公开(公告)号：US11099213B2
公开(公告)日：2021-08-24
申请号：US15789199
申请日：2017-10-20
摘要： A readout circuit for resistive and capacitive sensors includes a first input coupled to a reference resistor in a first mode of operation and coupled to a resistive sensor in a second mode of operation; a second input coupled to a capacitive sensor in the first mode of operation and coupled to a reference capacitor in the second mode of operation; and an output for providing a capacitive sensor data stream in the first mode of operation and for providing a resistive sensor data stream in the second mode of operation.
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公开(公告)号：US10932360B2
公开(公告)日：2021-02-23
申请号：US16514868
申请日：2019-07-17
申请人： UT-Battelle, LLC
IPC分类号： G01R1/20 , H05K1/02 , H05K3/28 , H05K1/09 , H05K3/12 , G01R15/00 , G01R19/00 , H05K1/16 , G01R15/16 , G01R21/06 , G01R35/00 , G01R15/18 , G01R19/25
摘要： A system and method (referred to as a method) to fabricate sensors and electronic circuits. The method prints a first thin-film having an electronic conductivity of about less than a millionth of a Siemens per meter and a permalloy directly onto the first thin-film. The permalloy has a magnetic permeability greater than a predetermined level and has a thickness within a range of about 1 to 20 microns. The system prints a second thin-film directly onto the permalloy to encapsulate the permalloy onto the first thin-film and prints conductive traces directly onto the surfaces of the first-thin-film, the permalloy, and the second thin-film. In some applications, a sensor is packaged in an additively manufactured three-dimensional cylindrical shape that can be mounted on or is a unitary part of a current carrying conductor without incising, sharing, or severing (e.g., cutting) the current carrying conductor or its insulation.
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公开(公告)号：US10585138B2
公开(公告)日：2020-03-10
申请号：US16025943
申请日：2018-07-02
申请人： AZ, LLC
发明人： Sana Rezgui
IPC分类号： G01R31/28 , G01R15/00 , G10L19/02 , G01R31/319 , G06F11/263 , G01R31/3181
摘要： Systems and methods for testing and/or operating remote devices are disclosed. The embodiments provide cost-effective, convenient, and flexible means for the sensing and/or probing of remote devices. Signals generated by remote devices may be received, analyzed, logged, and displayed, i.e., enhancements to the functionalities of an oscilloscope are achieved. Signals to remote devices may be provided, i.e. enhancements to the functionalities of a wave generator, logic analyzers, bus analyzers, and the like are achieved. More particularly, enhancements to the operability, capabilities, and functionality of such previously available testing equipment, are provided, via the operation of a remote, portable, and lightweight test bed. The test bed may be operated and controlled remotely via a user-computing device. The test bed senses, probes, and/or controls a remote device and test data is generated and/or acquired. The test data is provided to the user-computing device for analysis, visualization, and test report generation.
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公开(公告)号：US20200059212A1
公开(公告)日：2020-02-20
申请号：US16105604
申请日：2018-08-20
发明人： Nandakishore RAIMAR
摘要： In examples, an apparatus for sensing current comprises a power transistor; a sense transistor coupled to the power transistor; and an offset addition circuit coupled to the power transistor and the sense transistor, the offset addition circuit comprising a first pair of transistors and a differential amplifier. The apparatus also comprises a cascode amplifier circuit coupled to the offset addition circuit, the cascode amplifier circuit comprising a second pair of transistors, and a gain trim circuit coupled to the cascode amplifier circuit, the gain trim circuit including another differential amplifier and a third transistor. The apparatus further includes an analog-to-digital converter (ADC) coupled to the gain trim circuit and storage coupled to the ADC.
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公开(公告)号：US10557871B2
公开(公告)日：2020-02-11
申请号：US15627403
申请日：2017-06-19
发明人： Shih-Hsiang Chien
摘要： A reel device is a casing device for rollingly storing wire. The casing has a turnplate and is coupled with a measuring model. The measuring model has a function of testing the external circuit or power source plug and providing warning or presenting information regarding the external circuit or power source plug.
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