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公开(公告)号：US10139435B2
公开(公告)日：2018-11-27
申请号：US15413025
申请日：2017-01-23
Applicant: Fluke Corporation
Inventor： Ronald Steuer , Paul A. Ringsrud , Jeffrey Worones , Peter Radda , Christian Karl Schmitzer
Abstract: Systems and methods for measuring alternating current (AC) voltage of an insulated conductor (e.g., insulated wire) are provided, without requiring a galvanic connection between the conductor and a test electrode or probe. A non-galvanic contact (or “non-contact”) voltage measurement system includes a conductive sensor, an internal ground guard and a reference shield. A common mode reference voltage source is electrically coupled between the internal ground guard and the reference shield to generate an AC reference voltage which causes a reference current to pass through the conductive sensor. At least one processor receives a signal indicative of current flowing through the conductive sensor due to the AC reference voltage and the AC voltage in the insulated conductor, and determines the AC voltage in the insulated conductor based at least in part on the received signal.
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公开(公告)号：US20180136257A1
公开(公告)日：2018-05-17
申请号：US15625745
申请日：2017-06-16
Applicant: Fluke Corporation
Inventor： Ronald Steuer , Peter Radda , Ricardo Rodriguez , David L. Epperson , Patrick Scott Hunter , Paul Andrew Ringsrud , Clark N. Huber , Christian Karl Schmitzer , Jeffrey Worones , Michael F. Gallavan
CPC classification number: G01R15/125 , G01R1/22 , G01R15/14 , G01R15/16 , G01R15/207 , G01R19/00 , G01R19/25
Abstract: Systems and methods provide measurement of alternating current (AC) electrical parameters in an insulated wire without requiring a galvanic connection between the insulated wire and a test probe. Measurement systems or instruments may include a housing that includes both a non-contact voltage sensor and a non-contact current sensor. The measurement system obtains measurements from the voltage sensor and the current sensor during a measurement time interval and processes the measurements to determine AC electrical parameters of the insulated wire. The AC electrical parameters may be presented to an operator via a visual indicator device (e.g., display, lights). The AC electrical parameters may additionally or alternatively be communicated to an external device via a wired and/or wireless communications interface. The measurement system may include an alignment feedback sensor that provides feedback to a user regarding the mechanical alignment of the insulated wire relative to the voltage sensor and the current sensor.
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公开(公告)号：US10352967B2
公开(公告)日：2019-07-16
申请号：US15625745
申请日：2017-06-16
Applicant: Fluke Corporation
Inventor： Ronald Steuer , Peter Radda , Ricardo Rodriguez , David L. Epperson , Patrick Scott Hunter , Paul Andrew Ringsrud , Clark N. Huber , Christian Karl Schmitzer , Jeffrey Worones , Michael F. Gallavan
Abstract: Systems and methods provide measurement of alternating current (AC) electrical parameters in an insulated wire without requiring a galvanic connection between the insulated wire and a test probe. Measurement systems or instruments may include a housing that includes both a non-contact voltage sensor and a non-contact current sensor. The measurement system obtains measurements from the voltage sensor and the current sensor during a measurement time interval and processes the measurements to determine AC electrical parameters of the insulated wire. The AC electrical parameters may be presented to an operator via a visual indicator device (e.g., display, lights). The AC electrical parameters may additionally or alternatively be communicated to an external device via a wired and/or wireless communications interface. The measurement system may include an alignment feedback sensor that provides feedback to a user regarding the mechanical alignment of the insulated wire relative to the voltage sensor and the current sensor.
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Patent Agency Ranking
公开(公告)号：US20180136263A1
公开(公告)日：2018-05-17
申请号：US15412891
申请日：2017-01-23
Applicant: Fluke Corporation
Inventor： Ronald Steuer , Peter Radda
IPC: G01R19/25
CPC classification number: G01R19/2503 , G01R1/22 , G01R15/14 , G01R15/142 , G01R15/16 , G01R19/00
Abstract: Systems and methods for measuring alternating current (AC) voltage of an insulated conductor (e.g., insulated wire) are provided, without requiring a galvanic connection between the conductor and a test electrode or probe. A non-galvanic contact (or “non-contact”) voltage measurement system includes a plurality of conductive sensors which capacitively couple with the insulated conductor. At least one processor receives signals indicative of the voltages at the conductive sensors due to the AC voltage in the insulated conductor, and determines the AC voltage in the insulated conductor based at least in part on the received signals.
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公开(公告)号：US10534026B2
公开(公告)日：2020-01-14
申请号：US15697237
申请日：2017-09-06
Applicant: Fluke Corporation
Inventor： Ronald Steuer , Peter Radda
Abstract: Systems and methods that measure electrical parameters of a multi-phase electrical system may utilize a multi-phase measurement device that includes a sensor subsystem that has a voltage sensor and a current sensor. Each of the voltage sensor and the current sensor may be a contact-type sensor or a “non-contact” sensor that does not require galvanic contact. In operation, a multi-phase measurement device may utilize the voltage sensor and the current sensor to sequentially obtain single phase measurements for each phase of a multi-phase electrical system. The measurements may be synchronized to obtain various multi-phase power parameters, such as various parameters relating to power, phase, voltage, current, etc. The multi-phase measurement device may be operative to automatically detect when an operator has positioned a sensor of the sensor subsystem proximate a conductor under test so the multi-phase measurement device can initiate detection of one or more electrical parameters in the conductor.
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公开(公告)号：US10281503B2
公开(公告)日：2019-05-07
申请号：US15412891
申请日：2017-01-23
Applicant: Fluke Corporation
Inventor： Ronald Steuer , Peter Radda
Abstract: Systems and methods for measuring alternating current (AC) voltage of an insulated conductor (e.g., insulated wire) are provided, without requiring a galvanic connection between the conductor and a test electrode or probe. A non-galvanic contact (or “non-contact”) voltage measurement system includes a plurality of conductive sensors which capacitively couple with the insulated conductor. At least one processor receives signals indicative of the voltages at the conductive sensors due to the AC voltage in the insulated conductor, and determines the AC voltage in the insulated conductor based at least in part on the received signals.
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公开(公告)号：US20190072596A1
公开(公告)日：2019-03-07
申请号：US15697237
申请日：2017-09-06
Applicant: Fluke Corporation
Inventor： Ronald Steuer , Peter Radda
IPC: G01R25/00
CPC classification number: G01R25/005 , G01R21/06 , G01R21/133 , G01R23/02
Abstract: Systems and methods that measure electrical parameters of a multi-phase electrical system may utilize a multi-phase measurement device that includes a sensor subsystem that has a voltage sensor and a current sensor. Each of the voltage sensor and the current sensor may be a contact-type sensor or a “non-contact” sensor that does not require galvanic contact. In operation, a multi-phase measurement device may utilize the voltage sensor and the current sensor to sequentially obtain single phase measurements for each phase of a multi-phase electrical system. The measurements may be synchronized to obtain various multi-phase power parameters, such as various parameters relating to power, phase, voltage, current, etc. The multi-phase measurement device may be operative to automatically detect when an operator has positioned a sensor of the sensor subsystem proximate a conductor under test so the multi-phase measurement device can initiate detection of one or more electrical parameters in the conductor.
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公开(公告)号：US20180136264A1
公开(公告)日：2018-05-17
申请号：US15413025
申请日：2017-01-23
Applicant: Fluke Corporation
Inventor： Ronald Steuer , Paul A. Ringsrud , Jeffrey Worones , Peter Radda , Christian Karl Schmitzer
IPC: G01R19/257 , G01R19/25
CPC classification number: G01R19/257 , G01R1/22 , G01R15/14 , G01R15/146 , G01R19/00 , G01R19/2503 , G01R19/2509
Abstract: Systems and methods for measuring alternating current (AC) voltage of an insulated conductor (e.g., insulated wire) are provided, without requiring a galvanic connection between the conductor and a test electrode or probe. A non-galvanic contact (or “non-contact”) voltage measurement system includes a conductive sensor, an internal ground guard and a reference shield. A common mode reference voltage source is electrically coupled between the internal ground guard and the reference shield to generate an AC reference voltage which causes a reference current to pass through the conductive sensor. At least one processor receives a signal indicative of current flowing through the conductive sensor due to the AC reference voltage and the AC voltage in the insulated conductor, and determines the AC voltage in the insulated conductor based at least in part on the received signal.
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