Transformer (e.g., Split Core Admits Conductor Carrying Unknown Current) Patents (Class 324/127)
  • Patent number: 10390111
    Abstract: The disclosed system may include (1) a plurality of monitoring devices, where each of the plurality of monitoring devices is located at a different location along a powerline conductor and may include (a) at least one detection component that detects at least one physical characteristic at the location of the monitoring device along the powerline conductor, and (b) a transmitter that wirelessly transmits data indicating the at least one physical characteristic, and (2) a data injection device that (a) wirelessly receives the data indicating the at least one physical characteristic detected by the plurality of monitoring devices at the different locations along the powerline conductor, (b) transforms the data into an optical signal, and (c) injects the optical signal onto a fiber optic cable for transmission to a data collection subsystem. Various other systems and methods are also disclosed.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: August 20, 2019
    Assignee: Facebook, Inc.
    Inventor: Karthik Yogeeswaran
  • Patent number: 10388445
    Abstract: A current sensing circuit for use with a Rogowski coil arranged around a conductor having a primary current includes input terminals structured to receive an output voltage of the Rogowski coil, an analog to digital converter structured to convert a differential voltage to a digital differential voltage signal, a digital integrator structured to receive the digital differential voltage signal, to implement a discrete-time transfer function that is a transform of a transfer function of an analog integrator, and to output a digital integrator output signal, and a direct current blocker filter structured to remove a direct current bias from the digital integrator output signal and to output a digital current output signal that is proportional to the primary current in the conductor.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: August 20, 2019
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Zhi Gao, Daniel A. Hosko, Theodore J. Miller
  • Patent number: 10367337
    Abstract: A method of using a temporary conductor as a re-usable tool in maintaining, repairing or re-conductoring at least one energized phase, includes stringing the temporary conductor between support structures at either end of a first section, then energizing the said temporary conductor by bringing the temporary conductor to the voltage potential of the phase and electrically paralleling the temporary conductor with the energized phase, de-energizing and then maintaining, repairing or reconductoring the de-energized energized phase, re-energizing and electrically paralleling said energized phase, de-energizing and removing the temporary conductor for later re-use as the re-usable tool in a second section of the energized phase.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: July 30, 2019
    Assignee: Quanta Associates, L.P.
    Inventors: David Karl Wabnegger, Daniel Neil O'Connell, Robert Wayne Palmer, Jody Milton Greer
  • Patent number: 10365305
    Abstract: The Rogowski coil type sensor for measuring current includes a carrier and at least one secondary winding. The winding includes: at least one internal layer with a high turn density, which layer is wound in an “outward” first winding direction from the first end to a second opposite end of the winding, and at least one external layer with a low turn density, which layer is wound in a “return” second winding direction. The external layer with a low turn density includes: a first compensating portion with a high turn density, which portion is of small length and close to the first end, a central portion with a low turn density, which portion is of large length, and a second compensating portion with a high turn density, which portion is of small length and close to the second end.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: July 30, 2019
    Assignee: SCHNEIDER ELECTRIC INDUSTRIES SAS
    Inventors: Audrey Olivier, Philippe Brunel, Sebastien Buffat, David Granier
  • Patent number: 10355585
    Abstract: A variable frequency drive (VFD) circuit includes an input connectable to an AC source, a rectifier to convert an AC power input to a DC power, a DC link to receive DC power from the rectifier and having a DC link voltage thereon, a DC link capacitor bank with one or more capacitors connected to the DC link, and a pre-charge circuit coupled to the DC link capacitor. The pre-charge circuit further includes one or more resistors, one or more pre-charge relays each operable in on and off states to selectively control a current flow through the resistor(s) so as to control an initial pre-charge of the DC link capacitor, and an overvoltage relay operable in on and off states to selectively cut-off a current flow to the DC link capacitor bank, so as to prevent an overvoltage condition in the DC link capacitor bank.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: July 16, 2019
    Assignee: Eaton Intelligent Power Limited
    Inventors: Huaqiang Li, Youdong He, Xiaoling Li
  • Patent number: 10352967
    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.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: July 16, 2019
    Assignee: FLUKE CORPORATION
    Inventors: 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
  • Patent number: 10345364
    Abstract: A method for monitoring a high-voltage electric-current transmission line includes: determining (100) the ampacity (A) of the high-voltage line from a distribution temperature, conduction parameters and meteorological parameters; measuring (202) the current strength effectively transmitted by the high-voltage line using at least one sensor; and monitoring (204), by a monitoring device connected to the sensor, an excess of ampacity (A) by the current strength measured. The determining (100) of the ampacity (A) includes: selecting (108, 110, 112, 114, 116) a value of this ampacity (A) by optimizing a probability of exceeding the distribution temperature, with this probability defined based on a joint probability model (P) of operating current strength and temperature that depends on meteorological parameters; and recording (118) the selected ampacity value in a storage unit of the monitoring device.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: July 9, 2019
    Assignee: RTE RESEAU DE TRANSPORT D'ELECTRICITE
    Inventor: Pierre Stevenin
  • Patent number: 10338148
    Abstract: An object of the present invention is to provide a wireless communication technique which can measure a physical state of the measurement object with high accuracy and can transmit the measurement result rapidly. The communication device according to the present invention wirelessly transmits the measurement result during a first time slot, and starts measurement during a second time slot which differs from the first time slot (see FIG. 3).
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: July 2, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Kei Sakabe, Takanori Yamazoe
  • Patent number: 10338108
    Abstract: The present disclosure relates to systems and methods of locking a faulted circuit indicator (FCI). For example, the FCI may include a locking assembly. The locking assembly may include a lock plate that selectively moves between a locked position and an unlocked position. When in the locked position, the lock plate blocks a lock link of the FCI from moving in a first direction to prevent the FCI from opening. When in an unlocked position, the lock plate enables the lock link of the FCI to move in the first direction to allow the FCI to open.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: July 2, 2019
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Eric Ryan, Mark A. Thomas, Mark F. Witczak
  • Patent number: 10338102
    Abstract: In a voltage detection device for a transforming apparatus, a voltage divider is constituted by providing an intermediate electrode between a central conductor and a tank of the transforming apparatus, to detect a voltage E1 of the central conductor based on a voltage E2 of the voltage divider. The voltage detection device for a transforming apparatus includes an incomplete integration circuit having a reverse characteristic to an input/output voltage amplitude ratio-frequency characteristic of a high-pass filter formed by a floating electrostatic capacitance between the central conductor and the intermediate electrode, an earth electrostatic capacitance between the intermediate electrode and the tank, and a voltage dividing resistor connected in parallel to the earth electrostatic capacitance, and a signal processing circuit that outputs a value based on an output voltage E3 of the incomplete integration circuit as the voltage E1 of the central conductor.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: July 2, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Daigo Matsumoto, Shigeo Fujii
  • Patent number: 10317611
    Abstract: A display device includes a display panel and a backlight module. The display panel is disposed opposite to the backlight module. The backlight module includes a metal substrate, a light emitting element, a circuit layer, an adhesive layer, a reflective element and a light guiding element. The light emitting element is disposed at one side of the circuit layer facing the light guiding element. The adhesive layer is disposed between the circuit layer and a surface of the metal substrate. The reflective element is disposed adjacent to the circuit layer and the adhesive layer and is located on the surface of the metal substrate. The reflective element is disposed between the metal substrate and the light guiding element. A bottom surface of the adhesive layer and at least a part of a bottom surface of the reflective element are located at a same plane.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: June 11, 2019
    Assignee: Innolux Corporation
    Inventors: Kuang-Te Hsia, Chuang-Hsun Chiu, Yu-Cheng Cheng
  • Patent number: 10310027
    Abstract: Under one aspect, a method for characterizing current of an operating device under test (DUT) includes injecting a signal into a superconducting sensor; determining a property of the superconducting sensor based on the injected signal; disposing the superconducting sensor in spaced relationship to the operating DUT; inducing a magnetic field in the superconducting sensor based on the spaced relationship, the current of the operating DUT, and the injected signal; determining a change in the property of the superconducting sensor resulting from the induced magnetic field; and estimating current of the operating DUT based on the change in the property of the superconducting sensor.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: June 4, 2019
    Assignee: The Aerospace Corporation
    Inventor: Robert H. Nelson
  • Patent number: 10295587
    Abstract: A method for detecting electrical arcs for electrical installations with DC current source, implemented by a detection device including a calculation processor, disposed between the DC current source and a load. A digitized temporal signal is obtained on the basis of the electric current provided by the DC current source. A digitized temporal sub-signal is extracted. A bandpass filtering is applied to the digitized temporal sub-signal. The method also includes calculating a statistical value of order four of the filtered digitized temporal sub-signal, and comparing the calculated statistical value of order four with a first statistical threshold.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: May 21, 2019
    Assignee: SCHNEIDER ELECTRIC INDUSTRIES SAS
    Inventor: Mounir Djeddi
  • Patent number: 10292753
    Abstract: An electrosurgical generator includes a radio frequency output stage, a sensor for sensing current, and an active lead. The radio frequency output stage is configured to output at least one radio frequency waveform. The sensor includes a current sensor coil including an outer coil including an opening therethrough and an inner coil coupled to and disposed within the outer coil. The active lead is coupled to the radio frequency output stage and passes through the current sensor coil opening. The current sensor coil is configured to output a first signal indicative of a current within the active lead.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: May 21, 2019
    Assignee: COVIDIEN LP
    Inventors: Dean C. Buck, Edward L. Brannan, Mark A. Johnston
  • Patent number: 10295574
    Abstract: Electrical current transducer for mounting around an electrical primary conductor carrying a current to be measured, comprising a primary conductor receiving aperture (16), a housing (4), a magnetic core (6) mounted in the housing, and a secondary coil (10) wound around a branch of the magnetic core. The housing comprises a major portion (4a) and a minor portion (4b), the major portion being separable from the minor portion and configured to be mounted and locked around the primary conductor, the housing major and minor portions joinable together at joining faces (32a, 36a). The magnetic core comprises a major portion (6a) mountable in a core receiving cavity (20) of the housing major portion (4a), and a minor portion (6b) mountable in a core receiving cavity (22) of the housing minor portion (4b).
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: May 21, 2019
    Assignee: LEM INTELLECTUAL PROPERTY SA
    Inventor: Ye Nanshan
  • Patent number: 10281496
    Abstract: A sensor for sensing current includes a current sensor coil and at least one active lead and at least one return lead. The current sensor coil includes an outer coil and an inner coil coupled to and disposed within the outer coil. The at least one active lead and the at least one return lead pass through the current sensor coil opening. The current sensor coil is configured to output a differential signal indicative of a current within the at least one active lead and the at least one return lead.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: May 7, 2019
    Assignee: COVIDIEN LP
    Inventors: Dean C. Buck, Edward L. Brannan, Mark A. Johnston
  • Patent number: 10278764
    Abstract: An electrosurgical generator includes a radio frequency output stage, a sensor for sensing current, and an active lead. The radio frequency output stage is configured to output at least one radio frequency waveform. The sensor includes a current sensor coil including an outer coil including an opening therethrough and an inner coil coupled to and disposed within the outer coil. The active lead is coupled to the radio frequency output stage and passes through the current sensor coil opening. The current sensor coil is configured to output a first signal indicative of a current within the active lead.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: May 7, 2019
    Assignee: COVIDIEN LP
    Inventors: Dean C. Buck, Edward L. Brannan, Mark A. Johnston
  • Patent number: 10284097
    Abstract: A system comprises an input power stage coupled to a primary side of a transformer, an output power stage coupled to a secondary side of a transformer, a first common node capacitor and a common node resistor connected in series between a midpoint of the secondary side of the transformer and ground and a detector having an input connected to a common node of the first common node capacitor and the common node resistor, and an output connected to a control circuit, wherein the control circuit is configured to dynamically adjust a switching frequency of the system based upon an output of the detector.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: May 7, 2019
    Assignee: Futurewei Technologies, Inc.
    Inventors: Daoshen Chen, Heping Dai, Xujun Liu, Zhihua Liu, Liming Ye, Dianbo Fu, Ce Liu, Bing Cai
  • Patent number: 10274379
    Abstract: The present disclosure provides surge arrester units having one or a plurality of sensor assemblies within the surge arrester unit. The sensor assemblies include a first plate, a second plate, a heat absorption member positioned between the first and second plates, and a temperature assembly that senses the temperature of the heat absorption member and transmits the temperature.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: April 30, 2019
    Assignee: Hubbell Incorporated
    Inventors: Mohamed Fayaz Khatri, Michael Geoffrey Comber
  • Patent number: 10274521
    Abstract: A coil that includes one or more sensors.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: April 30, 2019
    Assignee: Veris Industries, LLC
    Inventor: Martin Cook
  • Patent number: 10276297
    Abstract: A holding device includes a Rogowski coil, where the Rogowski coil includes a line portion wound into a coil. The holding device further includes a housing part into which the Rogowski coil is connected. A fastening part is configured to be releasebly connected to the housing part and is further configured to be attached to a current-conducting means formed for conducting a current.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: April 30, 2019
    Assignee: PHOENIX CONTACT GMBH & CO. KG
    Inventors: Kay Lockstedt, Rainer Gockel, Markus Becker, Andreas Senger
  • Patent number: 10261040
    Abstract: A measuring device includes an integrated sensor unit. The integrated sensor unit is configured to record at least one moisture characteristic value of at least one building material. The measuring device further includes a communication unit. The communication unit is configured to receive at least one signal from at least one external sensor unit.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: April 16, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Reiner Krapf, Michael Frank, Wolfgang Baierl
  • Patent number: 10241948
    Abstract: An example embodiment includes an idle state detection circuit. The idle state detection circuit includes a bias current loop, a rectifying circuit loop, a voltage translating loop, and a filter circuit. The bias current loop provides a rectifying diode a forward current such that the rectifying diode detects an alternating current (AC) signal received from a transmitter via one or more transmission nodes. The rectifying circuit loop stores differential peak to peak amplitude information representative of a peak to peak amplitude of the AC signal in a first capacitor that is electrically coupled to a cathode side of the rectifying diode. The voltage translating loop converts the differential peak to peak amplitude information stored at the first capacitor to a single-end voltage signal across a first resistor that is electrically coupled to the cathode side of the rectifying diode. The filter circuit filters an AC component of the single-end voltage signal.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: March 26, 2019
    Assignee: FINISAR CORPORATION
    Inventors: Hongdang He, Qin Chen
  • Patent number: 10241138
    Abstract: Optical fiber based current measuring equipment for measuring the current circulating through a conductor. The equipment includes an interrogator having a light emitter and a light receiver, and a sensing portion close to the conductor, the interrogator and the sensing portion being connected through at least one standard single-mode intermediate fiber. The light emitter of the interrogator is configured to emit sets of at least two polarized light pulses to the sensing portion, the pulses being polarized with a specific degree difference, and the light receiver (4) is configured to determine the current circulating through the conductor depending on the pulses it receives in return from the sensing portion. A method for measuring the current circulating through a conductor with the use of an optical fiber based current measuring equipment is also provided.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: March 26, 2019
    Assignee: LUMIKER APLICACIONES TECNOLOGICAS S.L.
    Inventors: Francisco Javier Bengoechea De La Llera, Myriam Consuelo Garcia Carromero
  • Patent number: 10230174
    Abstract: A frequency diverse phased-array antenna operates simultaneously in two bands. A checkerboard of antenna elements for a first wavelength is offset with a second checkerboard of second antenna elements. Within the substrate is a three dimensional checkerboard of ground planes and ground walls which provide signal isolation between the bands. Multiple ground planes optimize operation at the several frequencies. Phased-array elements are isolated by a conductive wall in a multi-layer substrate. Orthogonal polarization of antenna patches further improve signal discrimination. Below the surface layer, another conductive wall isolates each quadrature hybrid. The conductive wall can be realized by metal vias or metal mesh infused through a dielectric and surrounding a raised ground plane to isolate electrical fields at each frequency. A conductive wall also provides quadrature hybrid isolation.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: March 12, 2019
    Inventor: Yan Wang
  • Patent number: 10228393
    Abstract: A multifunction testing and measuring device having a probe body with an elongated portion extending outward from a rearward main body portion to a hook-shaped forward end, the hook-shaped end useful for isolating a conductor under test, a slide closure member adapted to slide longitudinally forward from a rearward open position to a forward closed position, the closed position useful to capture the conductor under test within a space encircled by the combination of the hook-shaped end, the closed slide closure member, and the rearward main body, with the space encircled including a current sensing zone, and having test leads integral to and stowable on the main body. The multi tester comprises circuitry adapted for detecting a magnetic flux generated by an electric current passing through the conductor under test positioned within the current sensing zone, for sensing current and inrush current, as well as selectably measuring voltage, continuity, and resistance between the test leads.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: March 12, 2019
    Assignee: Kane USA, Inc.
    Inventors: Sean Patrick Tierney, David Lauren Wheaton, Michael John Kane
  • Patent number: 10197640
    Abstract: The present invention provides a high-sensitivity, carrier-resolved photo-Hall and photoelectromagnet (PEM) system utilizing multiple parallel dipole line (PDL) magnet systems. In one aspect of the invention, a Hall measurement apparatus is provided. The Hall measurement apparatus includes: a measurement chamber (e.g., a cryostat); a Hall module having at least one freely-rotating cylindrical magnet within the measurement chamber; a motor-driven cylindrical magnet adjacent to the at least one freely-rotating cylindrical magnet; an optical module for photo-Hall measurement, a set of electronics instruments and a data and signal analysis program for n-th harmonics lock-in detection of magnetoresistance signal and a control program. The system yields majority carrier type, density and mobility and, with illumination, minority carrier mobility and density.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: February 5, 2019
    Assignee: International Business Machines Corporation
    Inventor: Oki Gunawan
  • Patent number: 10180415
    Abstract: An article is provided with a web of polymer fibers forming a scrim with openings between the polymer fiber elements. A particulate is distributed in, or on the polymer fiber in a quantity to make the scrim detectable by X-ray detection or magnetic detection. One or more layers are laminated to the scrim. A process for detecting a multi-layered laminated scrim-containing article with magnetic or X-ray detection equipment in a production setting is also provided. With process implementation article loss in a product can be detected thereby reducing precautionary product discard.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: January 15, 2019
    Assignee: Illinois Tool Works Inc.
    Inventors: Karen S. Mertins, Robert Harrison Martin
  • Patent number: 10182510
    Abstract: The invention relates to an automation module for building automation, which is designed to be installed in a wall of a house as an at least partially concealed installation. The automation module comprises a high voltage region (6) and a low voltage region (4). It additionally comprises an insulation region (5) for separating said high (6) and low (4) voltage regions, a first circuit board (41, 41?) having at least one input interface (411, 414), a second circuit board (42) having at least one control unit (422), and a third circuit board (61) having at least one switching element (611). Said first, second and third circuit boards (41, 41?; 42, 61) and the insulation region (5) are arranged one above the other in layers.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: January 15, 2019
    Inventor: Werner Obrist
  • Patent number: 10156591
    Abstract: A current meter having a movably mounted swivel element, in which an angle is subtended between a first leg and a second leg of the swivel element. A free end of the first leg is coupled to the handle and a free end of the second leg is coupled to the first receiving element, these being movable relative to each other, so that upon activating the handle an activating force engaging with the first leg can be generated. The activating force can be converted by the swivel element into a displacement force on the second leg, directed transversely to the activating force, so that by this displacement force the first receiving element can be moved.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: December 18, 2018
    Assignee: Testo AG
    Inventors: Dirk Gopfert, Jorg Kaiser, Dragan Stajic, Vladimir Urosevic
  • Patent number: 10153772
    Abstract: Superconducting devices with enforced directionality and related methods are provided. In one example, a device including a first Josephson junction transmission line (JTL) for propagating a first set of quantum signals in a first direction and a second JTL for propagating a second set of quantum signals in the first direction is provided. The device may include a logic gate having a first input terminal for receiving the first set of quantum signals via the first JTL, and a second input terminal. The device may include a unidirectional buffer having a first input terminal for receiving the second set of quantum signals via the second JTL and an output terminal for coupling the second set of quantum signals to the second input terminal of the logic gate, where the unidirectional buffer may be configured to propagate quantum signals in only the first direction.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: December 11, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: Alexander L Braun
  • Patent number: 10149982
    Abstract: A method of treating and preventing a neurological disorder, such as Alzheimer's disease, in a subject in need thereof by positioning an electromagnetic field emitting source proximal to the subject and exposing the subject to an electromagnetic field having a predetermined frequency (preferably ?300-3,000 MHz) for a predetermined absorption period (preferably greater than ?3 days). Each individual treatment (comprising exposure to the predetermined frequency for the predetermined absorption period) is continued at a predetermined schedule for a predetermined treatment period. The EMF can have a specific absorption rate up to about 8 W/kg. The methodology enhances cognition in the subject and/or treats/prevents the underlying neurological disorder or a symptom thereof.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: December 11, 2018
    Assignees: University of South Florida, The United States of America as represented by the Department of Veterans Affairs
    Inventors: Gary W. Arendash, Chuanhai Cao, Jun Tan
  • Patent number: 10132947
    Abstract: Disclosed are systems and methods for marine geophysical surveying. An example system an electromagnetic source configured to emit an energy field into a body of water; a marine data acquisition node comprising: a base having a buoyancy such that the base is configured to float in a body of water; a geophysical sensor coupled to the base; a weight configured to anchor the marine data acquisition node to a water bottom; and a line connected between the weight and the base configured to prevent the base from floating to a surface of the body of water.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: November 20, 2018
    Assignee: PGS Geophysical AS
    Inventor: Andras Robert Juhasz
  • Patent number: 10132882
    Abstract: A body coil support structure includes an elongate support member. The elongate support member defines an opening and an examination axis passing through the opening along a length of the elongate support member. The opening is configured to accept an object to be imaged. The elongate support member has a target shape for use during operation of the MRI system, with the elongate support member configured to be subjected to an operational load during operation. In a design state, the elongate support member defines a design shape, with the elongate support member not subjected to the operational load in the design state. In an installed state after installation in the MRI system, the elongate support member defines an operational shape. The elongate support member is subjected to the operational load in the installed state. The operational shape is closer to the target shape than is the design shape.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: November 20, 2018
    Assignee: General Electric Company
    Inventors: Daniel Garcia, Wolfgang Daum, Chinmoy Goswami, Jason Montclair Pittman, Amy Meyers
  • Patent number: 10126330
    Abstract: This clamp-type ammeter has a flexible substrate of which an inner wall is configured to be able to deform into a substantially cylindrical shape. The clamp-type ammeter has a plurality of magnetic sensor elements disposed at the inner wall of the flexible substrate. The clamp-type ammeter has a tube of which one end is connected to the flexible substrate. The clamp-type ammeter has an operation unit that is connected to the other end of the tube and that can operate the deformation of the flexible substrate.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: November 13, 2018
    Assignee: OSAKA CITY UNIVERSITY
    Inventor: Hiroaki Tsujimoto
  • Patent number: 10114043
    Abstract: A clamp meter includes a meter body and a clamp jaw assembly mounted to the meter body. The clamp jaw assembly includes a first clamp jaw and a second clamp jaw which are movable in relation to each other between a closed position and an open position. In the closed position, distal ends of the first and second clamp jaws meet to define an enclosed area between the first and second clamp jaws, and in the open position, the distal ends of the first and second clamp jaws are separate from each other to define a gap allowing a wire under test to pass therethrough. The clamp meter further includes a locking member mounted within the meter body. The locking member is operable to releasably lock the first and second clamp jaws in the closed position.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: October 30, 2018
    Assignee: Fluke Corporation
    Inventors: Fang Li, Jinbo He, Chris Lagerberg
  • Patent number: 10102984
    Abstract: The disclosed concept relates generally to current sense techniques and apparatus for arc fault and ground fault receptacles, e.g., circuit interrupters, and, more particularly, to arc fault and ground fault receptacles including a shunt stationary terminal exhibiting both mechanical and electrical functionality. The shunt stationary terminal is composed of a steel or steel alloy and copper or copper alloy composite having a current shunt integrated therein.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: October 16, 2018
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Saivaraprasad Murahari, Jian Guo Chen, Hongzhi Zhou
  • Patent number: 10091676
    Abstract: A system includes a remote device, a client device, and a server. The server is configured to measure a signal strength of the client device relative to the server and transmit signal strength measurement data representing the signal strength. The remote device is configured to output a representation of the signal strength in accordance with the signal strength measurement data. A method includes measuring a signal strength of a client device relative to a server, transmitting signal strength measurement data representing the signal strength to a remote device, and outputting via the remote device a representation of the signal strength in accordance with the signal strength measurement data.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: October 2, 2018
    Assignee: DISH Technologies L.L.C.
    Inventor: Henry Gregg Martch
  • Patent number: 10078102
    Abstract: Precision AC voltage, current, phase, power and energy measurements and calibrations with current ranges from 1 uA to 20 kA and voltage ranges from 1V to 1000 kV are now performed with accuracies of better than one part per million. Continued demand for improved accuracy has led the inventors to address improvements to dual stage and multi-stage current transducers that may form the basis of the measuring process within many of the measurement instruments providing the precision AC measurements and calibrations. Additionally, the improvements to dual stage and multi-stage current transducers provide for novel feedback controlled precision AC current sources without requiring measurement of the AC current source output directly.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: September 18, 2018
    Assignee: GUILDLINE INSTRUMENTS LIMITED
    Inventors: Petar Miljanic, Tomasz Barczyk
  • Patent number: 10067165
    Abstract: A differential voltage probe for providing accurate measurement of differential voltage with high frequency components is disclosed that is further configured to accurately identify noise sources in EMI/EMC applications. The differential voltage probe is configured to provide the benefits of adequate differential voltage measurement bandwidth, galvanic isolation capability, high CMRR, flexible design to accommodate various requirements on voltage rating, loading effect, and frequency range of interest; and/or easy implementation and low cost. The differential voltage probe is able to achieve these optimized capabilities by implementing unique winding designs for transformer(s) used in the differential voltage probe circuit design.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: September 4, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Chingchi Chen, Richard William Kautz, Zhuxian Xu
  • Patent number: 10048296
    Abstract: An embodiment relates to an integrated circuit comprising measurement means for detection of a current change, wherein said measurement means comprise at least one coil.
    Type: Grant
    Filed: April 14, 2013
    Date of Patent: August 14, 2018
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Franz Jost, Jens Barrenscheen, Philip Georg Brockerhoff
  • Patent number: 10018534
    Abstract: The present invention refers to articles for collecting samples from a surface, articles for microbiological analyses of said samples, and methods of use of said articles. The articles include sample collectors, sample housings with optional barrier layers, and sample-ready reagent strips comprising hydrophilic agents to grow and detect microorganisms. The disclosure includes methods to collect, detect, and quantify microorganisms in a surface sample.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: July 10, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Cynthia D. Zook, Robert H. Silbernagel, Barbara L. Horter, Henry J. Lubrant, Robert E. Koeritzer
  • Patent number: 10001512
    Abstract: The present invention relates to an individualized self-monitoring system for transformers (31, 33) in a electric power measurement installation that comprises at least a transformer (31, 33) and at least a time-integrated electrical quantity meter (3, 4, 13), directly coupled to one of the windings of the transformer (31, 33), the meter (3, 4, 13) being capable of measuring and recording the electrical quantity of said winding. The present invention also relates to a method of monitoring and diagnosing transformers (31, 33) in a power measurement installation that comprises the steps of measuring the values of at least a directly measured time-integrated electrical in at least a winding of at least one transformer (31, 33), performing comparisons between the measured and generating diagnostic results with the compared data.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: June 19, 2018
    Assignee: Centro de Pesquisas de Energia Elétrica—CEPEL
    Inventors: José Eduardo da Rocha Alves, Jr., Luiz Carlos Grillo de Brito, Cesar Jorge Bandim, Fabio Cavaliere de Souza, Julio Cesar Reis dos Santos
  • Patent number: 9989594
    Abstract: The invention relates to a circuit (1) for detecting a switching state of an electrical switching contact (2) in a current supply path (5) for at least one electrical load (3). The monitoring circuit (1) has a monitoring unit (8) and a transformer (9). The transformer has a primary winding (10) connected to the monitoring unit (8) and a secondary winding (11) connected to the electrical switching contact (2). The secondary winding (11) forms a monitoring current circuit (6) together with the electrical switching contact (2) electrically connected to the secondary winding. The monitoring unit (8) is designed to apply electrical power to the primary winding (10) and to determine the switching state of the electrical switching contact (2) in dependence on a measured value (UA) proportional to the current (IA) flowing through the primary winding (10).
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: June 5, 2018
    Assignee: WAGO VERWALTUNGESELLSCHAFT MBH
    Inventor: Christian Voß
  • Patent number: 9971718
    Abstract: An example embodiment includes an idle state detection circuit. The idle state detection circuit includes a bias current loop, a rectifying circuit loop, a voltage translating loop, and a filter circuit. The bias current loop provides a rectifying diode a forward current such that the rectifying diode detects an alternating current (AC) signal received from a transmitter via one or more transmission nodes. The rectifying circuit loop stores differential peak to peak amplitude information representative of a peak to peak amplitude of the AC signal in a first capacitor that is electrically coupled to a cathode side of the rectifying diode. The voltage translating loop converts the differential peak to peak amplitude information stored at the first capacitor to a single-end voltage signal across a first resistor that is electrically coupled to the cathode side of the rectifying diode. The filter circuit filters an AC component of the single-end voltage signal.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: May 15, 2018
    Assignee: FINISAR CORPORATION
    Inventors: Hongdang He, Qin Chen
  • Patent number: 9973075
    Abstract: A method and apparatus for performing adaptive input current control in an electronic device are provided, where the method may include the steps of: before limiting an input current of a regulator of the electronic device to a target current value, monitoring the input current of the regulator according to a reference current, and decreasing the reference current, to make the reference current change starting from one of a plurality of predetermined reference current values, wherein the input current is obtained from a power source; detecting an input voltage of the regulator to generate a detection signal, to selectively trigger limiting output power of the regulator; and at a time point when the reference current becomes smaller than the input current, limiting the input current of the regulator to the target current value with a latest reference current value of the reference current being utilized as the target current value.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: May 15, 2018
    Assignee: MediaTek Inc.
    Inventors: Nien-Hui Kung, Kuo-Chang Lo, Chia-Hsiang Lin
  • Patent number: 9964565
    Abstract: A detector for detecting at least one electric quantity in an electric conductor, and an overhead network for distributing electricity. The detector includes a frame on which a mechanism is fixed, the mechanism including a magnetic toroid, divided into two branches rotatable around an axis defined by the frame, between a separated position and a position closed around the electric conductor, a current sensor, divided into two branches rotatable around an axis defined by the frame, between a separated position and a position closed around the electric conductor, the current sensor performing an AC current measurement, a force transmitting element transmitting a rotational force to the magnetic toroid and the current sensor, the element being provided with at least one portion to receive the conductor by bearing, and a first clamp including two clamp arms, and a second clamp including two clamp arms.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: May 8, 2018
    Assignee: SCHNEIDER ELECTRIC INDUSTRIES SAS
    Inventors: Alexandre Soleillant, Pascal Houbre, Erick Contini, Alain Moreux, Michel Clemence
  • Patent number: 9876388
    Abstract: A combined energy harvesting and measuring device, for use in harvesting energy from a power line conductor and in optimizing load balance and charge as between one or more energy storage or energy drawing devices comprises a single, multi-function current transformer (CT) which itself comprises an electrical winding disposed thereon, the CT being configured to receive an induced current on the electrical winding via magnetic flux energy generated by alternating current on the power line conductor and, at the same time, being configured to measure current flow on the power line conductor; and wherein there is a circuit electrically coupled to the electrical winding and configured to convert the harvested and received induced current into an electrical energy for consumption by an electrical device.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: January 23, 2018
    Assignee: AWESENSE WIRELESS INC.
    Inventors: Mischa Steiner-Jovic, Rick Slamka
  • Patent number: 9863979
    Abstract: An apparatus for energy auditing can include a sensor portion on a circuit substrate, the sensor portion defining a first opening, an integrated inductor on the sensor portion, the integrated inductor being formed proximal to the first opening or a hall sensor located on the sensor portion proximal to the first opening, and an electronic circuit on a body portion of the circuit substrate electrically coupled to the integrated inductor and configured to wirelessly transmit information to a wireless receiver.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: January 9, 2018
    Assignee: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Ioannis Kymissis, Shyuan Yang, Jun Shimada, Fabio Carta
  • Patent number: 9863986
    Abstract: Embodiments of an electric power measuring system capable of computing accurate electric power information using a low voltage measuring instrument in a small-scale electric power system are provided. The electric power measuring system may include a first measuring instrument for measuring and detecting a current and a zero-cross point from a distribution line and for generating and outputting current information of the distribution line from the current and the zero-cross point, and a second measuring instrument for computing electric power information of the distribution line according to a voltage thereof and the current information output from the first measuring instrument.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: January 9, 2018
    Assignee: LSIS Co., Ltd.
    Inventor: Hong-Seon Ahn