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2850 条记录 (耗时 0.032 秒)

    Oxygen sensor system and method
    53.
    发明授权
    Oxygen sensor system and method 有权

    公开(公告)号：US11174806B2

    公开(公告)日：2021-11-16

    申请号：US16599621

    申请日：2019-10-11

    申请人： DELPHI TECHNOLOGIES IP LIMITED

    发明人： Mark W. Gose ,  Jerry W. Campbell ,  Eugene V. Ripley ,  Marc R. Engelhardt ,  Jingyi Hou

    IPC分类号： F02D41/14 ,  F01N11/00 ,  G01R27/02

    摘要： A method of operating an oxygen sensor system is provided where the system includes an oxygen sensor, the oxygen sensor including a pump cell, and wherein the oxygen sensor is connected to associated circuitry such that the associated circuitry controls operation of the pump cell. The pump cell includes a pump line connected to a pump electrode of the pump cell and a return line connected to a return electrode of the pump cell. The method includes, subsequent to a diagnostic process, raising the potential of the pump line for a predetermined period of time by injecting current onto the pump line.

    Load impedance tester and measurement method
    54.
    发明授权
    Load impedance tester and measurement method 有权

    公开(公告)号：US11162988B2

    公开(公告)日：2021-11-02

    申请号：US16768472

    申请日：2017-12-04

    申请人： Aerojet Rocketdyne, Inc.

    发明人： Bryce L. Hesterman

    IPC分类号： G01R27/02 ,  F03H1/00 ,  G01R19/00 ,  G05F1/613

    摘要： An impedance measurement circuit includes a signal injector having a voltage input and a voltage output, a controllable switch, and a voltage drop device connected in parallel with the controllable switch between the voltage input and the voltage output. The voltage output is connected to a load. A voltage sensor is configured to measure a voltage across the load. A current sensor is configured to measure a current draw of the load. A computing device is configured to determine an impedance of the load at a frequency based on the measured voltage and the measured current. The computing device controls the switch based on the frequency.

    Circuit arrangement and method for resistance measurement
    56.
    发明授权
    Circuit arrangement and method for resistance measurement 有权

    公开(公告)号：US11119135B2

    公开(公告)日：2021-09-14

    申请号：US16605928

    申请日：2018-04-19

    申请人： Sciosense B.V.

    发明人： Friedrich Bahnmueller

    IPC分类号： G01R27/02 ,  G01K7/16 ,  G01R27/00

    摘要： A circuit arrangement for resistance measurement comprises a capacitor coupled between a first potential node and a second potential node, a pair of terminals that comprises a first terminal and a second terminal, the first and second terminals being coupleable to one of the at least one resistor. The circuit arrangement further comprises a set of circuit branches comprising a first circuit branch, a second circuit branch, a third circuit branch and a fourth circuit branch, each comprising a switch switchable between a conductive state and an insulating state. The circuit arrangement further comprises the first terminal being coupled to the first potential node via the first circuit branch and the second circuit branch being connected in parallel. The circuit arrangement further comprises the second terminal being coupled to the second potential node via the third circuit branch and the fourth circuit branch being connected in parallel.

    PARALLEL PLATE CAPACITOR SYSTEM FOR DETERMINING IMPEDANCE CHARACTERISTICS OF MATERIAL UNDER TEST (MUT)
    57.
    发明申请
    PARALLEL PLATE CAPACITOR SYSTEM FOR DETERMINING IMPEDANCE CHARACTERISTICS OF MATERIAL UNDER TEST (MUT) 有权

    公开(公告)号：US20210255161A1

    公开(公告)日：2021-08-19

    申请号：US17307114

    申请日：2021-05-04

    申请人： TransTech Systems, Inc.

    发明人： Manfred Geier ,  Adam D. Blot ,  Andrew J. Westcott

    IPC分类号： G01N33/24 ,  G01R31/50 ,  A61B5/0536 ,  G01N27/22 ,  G01N33/38 ,  G01R19/00 ,  G01R27/00 ,  G01R27/02 ,  G01R35/00

    摘要： Various aspects of the disclosure relate to evaluating the electromagnetic impedance characteristics of a material under test (MUT) over a range of frequencies. In particular aspects, a system includes: an electrically non-conducting container sized to hold the MUT, the electrically non-conducting container having a first opening at a first end thereof and a second opening at a second, opposite end thereof; a transmitting electrode assembly at the first end of the electrically non-conducting container, the transmitting electrode assembly having a transmitting electrode with a transmitting surface; and a receiving electrode assembly at the second end of the electrically non-conducting container, the receiving electrode assembly having a receiving electrode with a receiving surface, wherein the receiving electrode is approximately parallel with the transmitting electrode, and wherein the transmitting surface of the transmitting electrode is larger than the receiving surface of the receiving electrode.

    METHODS AND DEVICES FOR NON-INVASIVE ROOT PHENOTYPING
    60.
    发明申请
    METHODS AND DEVICES FOR NON-INVASIVE ROOT PHENOTYPING 有权

    公开(公告)号：US20210172922A1

    公开(公告)日：2021-06-10

    申请号：US16938822

    申请日：2020-07-24

    申请人： Hi Fidelity Genetics, Inc.

    发明人： Philip BENFEY ,  Jesse WINDLE ,  Daniel GOLDMAN ,  Jeffrey AGUILAR ,  Logan JOHNSON

    IPC分类号： G01N33/00 ,  G01R27/26 ,  G01R27/02 ,  G01R27/22 ,  G01R31/28 ,  G01R35/00 ,  G01R15/06 ,  G01R15/14 ,  G01N27/04 ,  G01N27/22

    摘要： The present disclosure provides for an electronic sensor for detecting a root of a plant in soil, the electronic sensor that includes a first conductor plate configured to be disposed in soil, a switch, a power supply, and signal extractor. The switch is electrically coupled to the first conductor plate and is configured to switch between a first mode and a second mode. The power supply is electrically coupled to the switch and is configured to provide an electrical charge to the first conductor plate in the first mode of the switch. The signal extractor is electrically coupled to the switch and is configured to extract a signal response at the first conductor plate in the second mode of the switch. The present disclosure further provides a second conductor plate configured to be disposed in soil adjacent to and substantially parallel to the first conductor plate. The second conductor plate is electrically coupled to ground.