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1. 发明申请

US20220146483A1 METHODS AND DEVICES FOR NON-INVASIVE ROOT PHENOTYPING 有权
公开(公告)号：US20220146483A1
公开(公告)日：2022-05-12
申请号：US17583010
申请日：2022-01-24
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 a 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.

2. 发明授权

US11268991B2 Medium voltage sensor using a multi-component resistive voltage divider 有权
公开(公告)号：US11268991B2
公开(公告)日：2022-03-08
申请号：US16530801
申请日：2019-08-02
申请人： ACLARA TECHNOLOGIES, LLC
发明人： Michael Giovannoni
IPC分类号： G01R1/20 , G01R19/25 , G01R15/06 , G01R15/16 , G01R19/00 , G01R21/06 , G01R35/00
摘要： Improved power line management is provided by the systems and methods disclosed herein that accurately measures voltage in a power distribution system. In various embodiments, the system may include one or more sensor units, each coupled to the power lines using a capacitive or resistive voltage divider to yield a voltage at a sensor unit that is within a measurable range. In one aspect, this voltage may also be used to power the sensor unit and/or other devices coupled to it.

3. 发明申请

US20210382090A1 SENSORS WITH DISCRETE CAPACITORS FOR HIGH VOLTAGE SEPARABLE CONNECTORS 有权
公开(公告)号：US20210382090A1
公开(公告)日：2021-12-09
申请号：US17445536
申请日：2021-08-20
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： Jaylon D. Loyd , Christopher R. Wilson , Carl J. Wentzel
IPC分类号： G01R15/06
摘要： A sensor for a separable connector includes a plug body, one or more high voltage capacitors, one or more low voltage capacitors, and a low voltage connection. The plug body includes an insulating resin. The plug body can be inserted into the separable connector to encase a high voltage conductor disposed in the separable connector. The one or more high voltage capacitors are encased by the insulating resin and can be electrically coupled to the separable connector at a first end portion when the plug body is inserted. The one or more low to voltage capacitors are electrically coupled in series to the one or more high voltage capacitors to form a capacitive voltage divider. The low voltage connection provides a low voltage signal corresponding to a high voltage signal present in the separable connector. Signal conditioning electronics or a memory may also be included.

4. 发明授权

US11193958B2 Non-contact voltage sensor 有权
公开(公告)号：US11193958B2
公开(公告)日：2021-12-07
申请号：US15788139
申请日：2017-10-19
申请人： Veris Industries, LLC
发明人： Randall Brant Elliott , Mark Steven Taft
IPC分类号： G01R15/16 , G01R27/26 , G01R15/06 , G01R15/14
摘要： A sensor for detecting voltage of a power cable includes a housing configured to be coupled around at least a portion of the power cable. A first conductive element supported by the housing is configured to be electrically coupled to the power cable when the housing is coupled around at least a portion of the power cable. A first capacitive element supported by the housing is electrically interconnected with the first conductive element. A second capacitive element supported by the housing is electrically interconnected with the first conductive element. A processor determines a cable capacitance of the power cable based upon alternatively sensing an electrical characteristic (i) the first capacitive element and the second capacitive element and (ii) the first capacitive element without the second capacitive element. The sensor determines the voltage of the power cable based upon the determined cable capacitance.

5. 发明申请

US20210364554A1 INDUCTOR CURRENT DETECTING CIRCUIT 有权
公开(公告)号：US20210364554A1
公开(公告)日：2021-11-25
申请号：US17011004
申请日：2020-09-03
申请人： ANPEC ELECTRONICS CORPORATION
发明人： CHIH-YUAN CHEN
IPC分类号： G01R15/06 , G01R15/18
摘要： An inductor current detecting circuit is provided. A differentiator circuit differentiates a high-side voltage signal to generate a first differential signal, and differentiates a low-side voltage signal to generate a second differential signal. A first current source outputs a first charging current according to the first differential signal. A second current source outputs a second charging current according to the second differential signal. First and second terminals of a first switch are respectively connected to the first current source and a first terminal of a second switch. A second terminal of the second switch is connected to the second current source. Two terminals of a capacitor are connected to the second terminal of the first switch and the second current source respectively. The first switch and the second switch are alternately turned on to obtain a continuous waveform.

6. 发明申请

US20210356499A1 DUAL-VOLTAGE CAPACITIVE SENSOR 有权
公开(公告)号：US20210356499A1
公开(公告)日：2021-11-18
申请号：US17313166
申请日：2021-05-06
申请人： Schneider Electric Industries SAS
发明人： Venanzio Ferraro , Massimo Secci , Sébastien Chabanet
IPC分类号： G01R19/175 , G01R15/16 , G01R15/06 , H01G4/38
摘要： A capacitive voltage sensor apparatus including an electrically insulating body, an elongated conductor embedded at least partially in the insulating body, a first floating sensor electrode embedded in the insulating body and capacitively coupled to the elongated conductor and configured to provide a first output representing the voltage of the elongated conductor, and a second floating sensor electrode embedded in the insulating body and capacitively coupled to the elongated conductor and configured both to provide a second output representing the voltage of the elongated conductor and to shield the first floating sensor electrode from electric fields that may originate from sources external to the capacitive voltage sensor apparatus. A capacitor may be embedded in the insulating body and electrically connected with the first electrical sensor to form a capacitive voltage divider that provides the first output. The first output may provide a precision LPVT output and the second output may provide an output for a voltage presence indication system or voltage detection indication system.

7. 发明授权

US10916949B2 Power supply device and an associated method thereof 有权
公开(公告)号：US10916949B2
公开(公告)日：2021-02-09
申请号：US16361647
申请日：2019-03-22
申请人： GENERAL ELECTRIC TECHNOLOGY GmbH
发明人： Mohan Srinivasarao
IPC分类号： H02J4/00 , G01R19/25 , H03H7/01 , G01R15/06 , H01T4/02 , H04W88/08
摘要： A power supply device is presented. The power supply device includes a voltage conversion unit. The voltage conversion unit includes a capacitor divider circuit. The capacitor divider circuit includes a plurality of capacitors coupled to each other in series. Further, the voltage conversion unit includes a step-down transformer coupled to at least one of the plurality of capacitors. The power supply device also includes a low pass filter configured to be coupled to at least one high voltage power line and the voltage conversion unit, where the low pass filter is configured to provide filtered power to the voltage conversion unit.

8. 发明申请

US20200341035A1 CAPACITANCE-COUPLED VOLTAGE TRANSFORMER MONITORING 审中-公开
公开(公告)号：US20200341035A1
公开(公告)日：2020-10-29
申请号：US16396939
申请日：2019-04-29
申请人： Schweitzer Engineering Laboratories, Inc.
发明人： Travis C. Mallett , Robert Lopez, JR.
IPC分类号： G01R15/06 , H02H7/05 , G01R19/165 , G08B21/18 , H02H9/00
摘要： The present disclosure pertains to systems and methods for monitoring a capacitance-coupled voltage transformer (CCVT) in electrical communication with the electric power delivery system, the CCVT comprising a stack of capacitors and an electrical contact to a first ground connection. A first current transformer is disposed between the stack of capacitors and the first ground connection. The current transformer provides an electrical signal corresponding to a current associated with the CCVT. A second current transformer is disposed between a primary winding of a step-down transformer associated with the CCVT and a second ground connection. An intelligent electronic device (IED) in electrical communication with the current measurement devices monitors a ratio of magnitudes from the current transformers at a single frequency. The ratio is compared against an acceptable range. When the ratio exceeds the acceptable range, an alarm is generated.

9. 发明授权

US10732204B2 Large-capacitance insulating core, high-voltage electrical appliance and multi-functional high-voltage bushing 有权
公开(公告)号：US10732204B2
公开(公告)日：2020-08-04
申请号：US16080111
申请日：2016-10-21
申请人： BEIJING RUIHENG XINYUAN INVESTMENT CO., LTD
发明人： Huan Wang
IPC分类号： G01R15/06 , H01G4/30 , H01B17/28 , H01G4/38 , H01G4/005
摘要： A large-capacitance insulating core, a high-voltage electrical appliance and a multi-functional high-voltage bushing. The insulating core is internally provided with a capacitance increasing structure. The capacitance increasing structure is a plurality of capacitive screen sets formed by a forward capacitive screen set and a reverse capacitive screen set that are alternatively arranged and in parallel connection. The forward capacitive screen set includes a plurality of capacitive screens arranged alternatively with insulating layers, an innermost capacitive screen of the forward capacitive screen set is connected to a high potential, and an outermost capacitive screen is connected to a low potential. The reverse capacitive screen set includes a plurality of capacitive screens arranged alternatively with insulating layers, an innermost capacitive screen of the reverse capacitive screen set is connected to a low potential, and an outermost capacitive screen is connected to a high potential; and an innermost capacitive screen set and an outermost capacitive screen set in the plurality of capacitive screen sets of the capacitance increasing structure are both the forward capacitive screen sets, and can satisfy the voltage-sharing and large-capacitance requirements simultaneously. The high-voltage electrical appliance and the multi-functional high-voltage bushing include the large-capacitance insulating core.

10. 发明申请

US20200041549A1 MEDIUM VOLTAGE SENSOR USING A MULTI-COMPONENT RESISTIVE VOLTAGE DIVIDER 审中-公开
公开(公告)号：US20200041549A1
公开(公告)日：2020-02-06
申请号：US16530801
申请日：2019-08-02
申请人： ACLARA TECHNOLOGIES, LLC
发明人： Michael Giovannoni
IPC分类号： G01R19/25 , G01R15/16 , G01R15/06
摘要： Improved power line management is provided by the systems and methods disclosed herein that accurately measures voltage in a power distribution system. In various embodiments, the system may include one or more sensor units, each coupled to the power lines using a capacitive or resistive voltage divider to yield a voltage at a sensor unit that is within a measurable range. In one aspect, this voltage may also be used to power the sensor unit and/or other devices coupled to it.

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