Resonance, Frequency, Or Amplitude Study Patents (Class 73/579)
  • Patent number: 11319809
    Abstract: Methods and systems of monitoring and controlling a longwall mining system. One system includes a shearer including a cutter drum and a sensor mounted to the shearer. The system also includes an electronic controller including a processor and a memory, the electronic controller communicatively coupled to the sensor. The electronic controller is configured to receive vibration data from the sensor and determine a current vibration level associated with the shearer based on the vibration data. The electronic controller is also configured to compare the current vibration level to a vibration threshold. The electronic controller is also configured to, in response to the current vibration level exceeding the vibration threshold, adjust a cutting parameter for the cutter drum of the shearer. The electronic controller is also configured to control the cutter drum with the adjusted cutting parameter.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: May 3, 2022
    Assignee: Joy Global Underground Mining Inc
    Inventors: Edward F. Niederriter, Jeffrey A. Ley
  • Patent number: 11300545
    Abstract: In the system, two ultrasonic transducers, which form a pair and each have a piezoelectric ceramic plate-shaped element with a rectangular geometry, can be fastened to a surface of a component. The two ultrasonic transducers are arranged at a distance from one another such that there is no direct mechanical contact and they are arranged beside one another with a parallel orientation of their central longitudinal axes. The two elements have a different polarization along their width and are connected with the same polarity to an electrical voltage source. The two plate-shaped elements can also have an identical polarization along their width and can be connected in this case with opposite polarity to an electrical voltage source. At least one ultrasonic transducer and/or at least one further ultrasonic transducer is/are designed to detect ultrasonic waves reflected by defects and/or shear waves simultaneously emitted by the two ultrasonic transducers.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: April 12, 2022
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Bianca Weihnacht, Tobias Gaul, Uwe Lieske, Lars Schubert, Bernd Koehler
  • Patent number: 11293900
    Abstract: The present invention relates to a method for detecting an analyte, which is based on the detection of a signal caused by a change of the mechanical properties of a permeable freestanding nanoparticle composite. The present invention also relates to a method for determining the concentration of and/or recognizing an analyte.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: April 5, 2022
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Hendrik Schlicke, Tobias Vossmeyer, Malte Behrens, Sophia Caroline Bittinger
  • Patent number: 11293902
    Abstract: According to one embodiment, an inspection apparatus determines an object to be in a first state when an intensity at a first frequency of a frequency characteristic is not less than a first threshold, and determines the object to be in a second state when the intensity at the first frequency is less than the first threshold. The frequency characteristic is generated based on a vibration of the object when the object is struck. The second state is different from the first state.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: April 5, 2022
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventor: Hiroaki Kuwahara
  • Patent number: 11262195
    Abstract: A surface roughness analysis system and methods of analyzing surface roughness of a workpiece are presented. The surface roughness analysis system comprises a number of wave generators; a number of wave sensors; and an ultrasonic analysis system configured to receive material mechanical parameters for a workpiece, determine incident surface wave signal parameters for a source signal to be sent by the number of wave generators, and determine a cut-off wavelength using the material mechanical parameters, wherein the cut-off wavelength is a ratio of surface wavelength over incident wavelength.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: March 1, 2022
    Assignee: The Boeing Company
    Inventors: Shahrooz M. Jahanbin, Jeong-Beom Ihn, Gary E. Georgeson, Nihar Ashokkumar Desai
  • Patent number: 11249055
    Abstract: Systems and methods for testing a component, such as a battery, of a host device include transmitting one or more input acoustic signals into at least a portion of the host device, through input transducers coupled to the host device. One or more response signals generated in response to the one or more input acoustic signals are detected through recording transducers coupled to the host device. The one or more response signals are stored and compared with reference signals or datasets. One or more physical characteristics of the component or battery are analyzed based on the comparison.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: February 15, 2022
    Assignees: Feasible, Inc., The REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Andrew Gaheem Hsieh, Anne Wilkinson, Robert Charles Mohr, Shaurjo Biswas, Barry James Van Tassell, Daniel Artemis Steingart
  • Patent number: 11236616
    Abstract: A turbomachine airfoil element includes an airfoil that has pressure and suction sides spaced apart from one another in a thickness direction and joined to one another at leading and trailing edges. The airfoil extends in a radial direction a span that is in a range of 4.47-4.77 inch (113.5-121.2 mm). A chord length extends in a chordwise direction from the leading edge to the trailing edge at 50% span and is in a range of 2.57-2.87 inch (65.3-72.9 mm). The airfoil element includes at least two of a first mode with a frequency of 297±10% Hz, a second mode with a frequency of 1035±10% Hz, a third mode with a frequency of 1488±10% Hz, a fourth mode with a frequency of 1524±10% Hz, a fifth mode with a frequency of 2855±10% Hz and a sixth mode with a frequency of 4462±10% Hz.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: February 1, 2022
    Assignee: Raytheon Technologies Corporation
    Inventors: Kurt R. Heinemann, Sumin Tao, Christopher B. Jelks, Xuedong Zhou, Mark David Ring, Konstantinos Panagiotis Giannakopoulos, Kate Hudon, John Joseph Papalia
  • Patent number: 11231396
    Abstract: A system and method for monitoring a dry gas seal positionable between a stationary housing and a rotatable shaft. A plurality of sense elements may rotate in response to the rotation of the rotatable shaft and a speed sensor may sense the speed of the rotatable shaft at speeds below one thousand rotations per minute based on sensing the plurality of sense elements. A processor may receive output signals from the speed sensor and may establish a position of the dry gas seal or an operating condition of the dry gas seal based on the signal from the speed sensor.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: January 25, 2022
    Assignee: JOHN CRANE UK LIMITED
    Inventors: Ian Martyn Goldswain, Joseph L. Savio, Oliver Daniel Hurtig
  • Patent number: 11226312
    Abstract: Provided is an additive manufacturing system capable of performing in-process, layer-by-layer non-destructive testing, the additive manufacturing system including: a plate for producing a part thereon; a transducer attached to the plate and configured to induce vibrations in the part; and a laser vibrometer configured to detect a vibrational response of the part to determine whether defect and/or anisotropy exists within the part.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: January 18, 2022
    Assignee: TRIAD NATIONAL SECURITY, LLC
    Inventors: Marcel Remillieux, Carly M. Donahue, Marcie A. Stuber Geesey
  • Patent number: 11209400
    Abstract: Non-limiting examples of the present disclosure relate to devices, systems and methods for conducting non-destructive evaluation (NDE) of a wooden specimen, where structural integrity of the wooden specimen is assessed without being compromised. A non-limiting example of a wooden specimen is a wooden utility pole. One or more NDE devices, attached to the wooden specimen, are configured to transmit and/or receive ultrasonic signals to execute NDE of the wooden specimen. An exemplary NDE device may be controlled by another computing device via a data transmission connection. Examples described herein pertain to a variety of coverages that comprise but are not limited to: coverage for a single NDE device; coverage for a system of two or more NDE devices that are utilized to conduct NDE of the wooden specimen; and coverage where one or more NDE devices interface with one or more computing devices to conduct NDE of the wooden specimen.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: December 28, 2021
    Assignee: INNERVIEW TECHNOLOGIES LIMITED
    Inventors: Dion Hall, Yishi Lee, Wayne Hall
  • Patent number: 11180992
    Abstract: Methods and systems of monitoring and controlling a longwall mining system. One system includes a shearer including a cutter drum and a sensor mounted to the shearer. The system also includes an electronic controller including a processor and a memory, the electronic controller communicatively coupled to the sensor. The electronic controller is configured to receive vibration data from the sensor and determine a current vibration level experienced by a cutter drum of the shearer based on the vibration data. The electronic controller is also configured to compare the current vibration level to a vibration threshold. The electronic controller is also configured to detect an impact event associated with the cutter drum of the shearer based on the comparison and generate an impact event indication associated with the impact event.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: November 23, 2021
    Assignee: JOY GLOBAL UNDERGROUND MINING LLC
    Inventors: Edward F. Niederriter, Jeffrey A. Ley
  • Patent number: 11180993
    Abstract: Methods and systems of monitoring and controlling a longwall mining system. One system includes a shearer including a cutter drum and a sensor mounted to the shearer. The system also includes an electronic controller including a processor and a memory. The electronic controller is configured to receive an impact event indication associated with an impact event of the cutter drum, the impact event indication based on vibration data collected by the sensor. The electronic controller is also configured to retrieve additional data associated with the impact event indication and link the additional data with the vibration data of the impact event indication. The electronic controller is also configured to create and store an impact event record including the vibration data and the additional data. The electronic controller is configured to, in response to receiving a maintenance request, export the impact event record for display.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: November 23, 2021
    Assignee: JOY GLOBAL UNDERGROUND MINING LLC
    Inventors: Edward F. Niederriter, Jeffrey A. Ley
  • Patent number: 11175263
    Abstract: The present disclosure relates to evaluating an ovaling mode in a cylindrical object and determining a quality of the cylindrical object by analysis of the ovaling mode. In an embodiment, the present disclosure relates to a method for determining a structural quality of a cylindrical element, comprising measuring, as a result of a single applied force, surface vibrations of the cylindrical element via four or more surface transducers arranged on the cylindrical element along a circumference of the cylindrical element, the four or more surface transducers being equally spaced along the circumference, processing digital signals corresponding to each of the four or more surface transducers in order to generate a composite digital signal, transforming the composite digital signal to a frequency domain, comparing the transformed composite digital signal to a reference composite digital signal, and determining, based on the comparing, the structural quality of the cylindrical element.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: November 16, 2021
    Assignee: King Fahd University of Petroleum and Minerals
    Inventor: Djamel Ouis
  • Patent number: 11162931
    Abstract: This identification apparatus is for identifying the degree of degradation of oil and includes a sensor that detects a substance arising from oil contained in an oil tank and a controller that determines the degree of degradation of the oil based on information related to the substance detected by the sensor and the distance from the oil tank containing the oil to the sensor.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: November 2, 2021
    Assignee: KYOCERA Corporation
    Inventor: Hirohide Yamasaki
  • Patent number: 11156571
    Abstract: A substance detection system and a substance detection method are provided. The temperature identifying portion identifies a surface temperature of the quartz substrate, based on a difference between a deviation of the fundamental wave frequency from at least any predetermined reference fundamental wave frequency of the reference crystal resonator and the detecting crystal resonator and a deviation of the third harmonic frequency from a predetermined reference third harmonic frequency. The substance identifying portion identifies a temperature at which a contaminant attached to the detecting crystal resonator is desorbed from the detecting crystal resonator to identify the contaminant based on the temperature at which the contaminant is desorbed.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: October 26, 2021
    Assignees: NIHON DEMPA KOGYO CO., LTD., JAPAN AEROSPACE EXPLORATION AGENCY
    Inventors: Hiroyuki Kukita, Shunichi Wakamatsu, Tsuyoshi Shiobara, Takayuki Ishikawa, Eiji Miyazaki, Yuta Tsuchiya
  • Patent number: 11143630
    Abstract: Resonance inspection of parts in which a resonance standard to which a frequency response of the part is compared is at least in part based on a property derived from testing of a witness coupon that is manufactured concurrently with the part. This approach may allow properties of a material and/or manufacturing technique used to produce the part and witness coupon to inform the resonance standard to improve testing. Approaches are described related to both empirically derived resonance standards as well as model-based resonance standards.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: October 12, 2021
    Assignee: Vibrant Corporation
    Inventors: Leanne Jauriqui, Greg Weaver, Alexander J. Mayes
  • Patent number: 11143624
    Abstract: A method for determining a quality of a friction stir welded seam is described. The method involves applying an impact to a welded plate and comparing its damping capacity with the damping capacity of a geometrically equivalent defect-free plate. Damping capacities that differ by a small percent difference indicate that the welded plate is also defect-free. This method is particularly advantageous when dealing with small defects, which produce miniscule changes in natural frequency which may not be measureable.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: October 12, 2021
    Assignee: King Abdulaziz University
    Inventors: Waheed Sami Abushanab, Essam B. Moustafa
  • Patent number: 11137281
    Abstract: According to one embodiment, a sensor includes a structure body, an element portion, and a power line. The structure body includes a supporter and a film portion. The film portion is supported by the supporter and includes an end portion. The end portion is aligned with a first direction and supported by the supporter. The element portion includes a first element provided at the film portion. The first element includes a first magnetic layer, a first opposing magnetic layer provided between the first magnetic layer and the film portion, and a first nonmagnetic layer provided between the first magnetic layer and the first opposing magnetic layer. A second direction from the first opposing magnetic layer toward the first magnetic layer crosses the first direction. The power line is electrically insulated from the element portion. The power line includes a portion aligned with the first direction.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: October 5, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yoshihiro Higashi, Yoshihiko Fuji, Kazuaki Okamoto, Shotaro Baba, Michiko Hara
  • Patent number: 11125724
    Abstract: A fastener probe assembly includes a disc configured to rotate about a first axis of a fastener, an ultrasound probe coupled to the disc, and an encoder configured to determine an orientation of the ultrasound probe relative to the first axis of the fastener during an inspection of the fastener. The ultrasound probe is configured to interface with an axial end of the fastener, to emit ultrasound signals into the axial end of the fastener, and to receive ultrasound signals from the fastener.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: September 21, 2021
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Manuel Kenneth Bueno, Willis James Perry, Robert Charles Shaffer
  • Patent number: 11060021
    Abstract: The present invention relates to a core-shell nanocomposite including fluorescent bodies disposed to have a uniform distance in a perpendicular direction from a surface thereof, to a method of manufacturing same, and to a use for a probe for metal-enhanced fluorescence.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: July 13, 2021
    Assignee: SNU R&DB Foundation
    Inventors: Jwa Min Nam, Jae Ho Hwang, Min Ho Kim, Jung Hoon Lee
  • Patent number: 11060999
    Abstract: A predictive diagnostics system for monitoring mechanical seals. The system autonomously detects a loss of lubrication within a sliding seal interface of a mechanical seal, the system including a loss of lubrication failure mode logic module configured to monitor data sensed by one or more sensors and diagnose conditions relating to a loss of lubrication within the sliding seal interface, and a plurality of other failure mode logic modules configured to monitor data sensed by the one or more sensors and diagnose conditions relating to specific types of mechanical failures known to occur in mechanical seal systems, the loss of lubrication failure mode logic module configured to determine which of the plurality of other failure mode logic modules are activated during the diagnosis of conditions related to a loss of lubrication within the sliding seal interface.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: July 13, 2021
    Assignee: JOHN CRANE UK LTD.
    Inventors: Klaus-Dieter Meck, Amrat Parmar, David Unsworth
  • Patent number: 11047762
    Abstract: Systems, methods and apparatuses for inspecting a tank containing a flammable fluid are provided. A vehicle configured to inspect the tank can include a propeller, a battery, a control unit, an inspection device, and a ranging device. The battery provides power to the propeller, the control unit, the inspection device, and the ranging device. The control unit generates a map of the tank. The control unit determines a first position of the vehicle on the map of the tank. The propeller moves the vehicle through the flammable fluid in the tank. The inspection device determines a quality metric of a portion of the tank. The control unit causes the propeller to move the vehicle from the first position to a second position within the tank. The control unit determines the quality metric for the portion of the tank at the second position within the tank, and stores the quality metric.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: June 29, 2021
    Assignee: SQUARE ROBOT, INC.
    Inventors: Jerome Vaganay, Eric Levitt, William O'Halloran
  • Patent number: 11047783
    Abstract: The present invention relates to a folding apparatus for flexible material durability testing, the folding apparatus including: a material fixing part fixing a part of a flexible material to be tested; a pivoting plate spaced apart at a predetermined gap from the material fixing part, and folding or unfolding the flexible material by rotatively moving in a state where the other part of the flexible material is fixed thereon; and a motion controller supporting the pivoting plate to enforce the pivoting plate to rotatively move and to allow the pivoting plate to forwardly or backwardly move with respect to the material fixing part at the same time. In addition, because a miscellaneous force in addition to tensile force is not applied to the material during flexible material durability testing, the testing is highly reliable. Accordingly, the folding apparatus may accurately perform the flexible material durability testing.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: June 29, 2021
    Assignee: FlexiGO, INC.
    Inventors: Ki Yong Lee, Ki Choul An, Dae Sung Kim, Yeon Ung Chu
  • Patent number: 10996150
    Abstract: A jig assembly for measuring the tensile strength of an electrode at a bend having a similar radius to a core, an apparatus for measuring bending tensile strength including the jig assembly, and a method for measuring bending tensile strength that measures the tensile strength of an electrode at a bend having a similar radius to a core using the apparatus for measuring bending tensile strength are provided. The jig assembly of the present disclosure includes a fixing unit configured to fix a first end part of a sample, and a plate shaped bending jig configured to provide a one point bend to a lengthwise direction cross section of the sample and to guide a second end part of the sample toward a tensile testing load unit. According to the present disclosure, it is possible to measure the tensile strength of the electrode under a similar condition to a winding process before the electrode is used in real winding applications.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: May 4, 2021
    Assignee: LG CHEM, LTD.
    Inventors: An-Soo Jeong, Young-Tae Kim, Nam-Won Kim, Min-Gyu Kim, Pil-Kyu Park, Han-Gab Song
  • Patent number: 10996203
    Abstract: Acoustic transducers generate and receive acoustic signals at multiple locations along a surface of rigid structure, wherein longitudinal spacing between transducer locations define measurement zones. Acoustic signals with chosen amplitude-time-frequency characteristics excite multiple vibration modes in the structure within each zone. Small mechanical changes in inspection zones lead to scattering and attenuation of broadband acoustic signals, which are detectable as changes in received signal characteristics as part of a through-transmission technique. Additional use of short, narrowband pulse acoustic signals as part of a pulse-echo technique allows determination of the relative location of the mechanical change within each zone based on the differential delay profiles. For accurate acoustic modeling and simulation, the mesh size, time step, time delay, and time-window size are optimized.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: May 4, 2021
    Assignees: Triad National Security, LLC, Chevron U.S.A. Inc.
    Inventors: Alp Tugrul Findikoglu, Taeho Ju, Daniel Robert Chapman
  • Patent number: 10914654
    Abstract: An observation system includes an information acquiring section configured to acquire sensor information from a sensor section set in a structure and configured to detect vibration of the structure and a processing section configured to calculate information concerning a peak vibration frequency of the vibration on the basis of the sensor information and determine a surface state of the structure on the basis of the information concerning the peak vibration frequency.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: February 9, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Kazuyoshi Takeda
  • Patent number: 10896311
    Abstract: An acoustic biometric imaging system for acquiring a fingerprint representation, comprising: a device member; a transmitter transducer having a first fundamental mode resonance frequency, coupled to the device member; drive circuitry; a receiver transducer having a second fundamental mode resonance frequency, coupled to the device member; receiver circuitry; and processing circuitry configured to: control the drive circuitry to provide an electrical excitation signal to the transmit transducer resulting in fundamental mode oscillation of the transmit transducer with a frequency spectrum having a peak frequency being higher than the first fundamental mode resonance frequency and the second fundamental mode resonance frequency; receive, from the receiver circuitry, an electrical sensing signal indicative of an acoustic reflection signal; and determine the fingerprint representation based on the sensing signal received from the receiver circuitry.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: January 19, 2021
    Assignee: Fingerprint Cards AB
    Inventor: Roy Hansen
  • Patent number: 10823791
    Abstract: In a method and magnetic resonance apparatus for monitoring functioning of a cooling system of the apparatus, at least some apparatus components, that are to be cooled by the cooling system, have respective temperature sensors in thermal communication therewith. A start temperature of at least one of the components is determined by at least one of the sensors, and a computer determines, from the start temperature, at least one comparison variable that describes a reference temperature change due to power input to the respective component. The at least one temperature sensor provides the computer with a measured variable that describes actually occurring temperature change due to the power input. The computer compares the measured variable with the comparison variable and determines whether the comparison result fulfills an action criterion and, if so, the computer initiates implementation of an action associated with the action criterion.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: November 3, 2020
    Assignee: Siemens Healthcare GmbH
    Inventor: Stephan Biber
  • Patent number: 10788460
    Abstract: Resonant Ultrasound Spectroscopy (RUS) is applied to diamonds (both cut/polished gemstones and rough diamonds) to yield a digital fingerprint from which the stone may be authenticated and sorted according to the structural quality. Diamonds are mined as rough stones from which they undergo examination to determine their value as being gem, or of two different industrial qualities. Fewer than 25% of mined diamonds are worthy of cutting and polishing to yield gems for jewelry. About 40% of the remaining population still have value as industrial diamonds for machine tools, and the rest is ground into dust to provide coatings for grinding applications. Rough stones exist in two conditions being coated and uncoated. The coated stones have a layer of polycrystalline diamond, different from the predominant crystal structure, rendering them opaque. This interferes with optical inspection, as any cracks, or inclusions can't be seen.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: September 29, 2020
    Assignee: Gemological Institute of America, Inc. (GIA)
    Inventor: George Wyatt Rhodes
  • Patent number: 10753823
    Abstract: The present disclosure relates to a system for measuring a dynamic response of a machine. The system includes a vibration mechanism, an accelerometer, a controller and a casing. The vibration mechanism is operable to generate an excitation signal, and the accelerometer is operable to measure dynamic energy in response to the excitation signal and output a dynamic response signal indicative of the dynamic energy. The controller includes a communication interface and operates the vibration mechanism to output the excitation signal and transmit a vibration input signal based on the excitation signal by way of the communication interface. The casing houses the vibration mechanism and the controller.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: August 25, 2020
    Assignee: Ford Motor Company
    Inventors: Youssef Ziada, David Stephenson
  • Patent number: 10746527
    Abstract: Provided are a method and a system for detecting bend in the rotating shaft of magnetic bearing. The system comprises a first displacement sensor, a second displacement sensor, and a processor electrically connected with the first displacement sensor and the second displacement sensor; the processor comprises a calculating unit, a first judging unit and a second judging unit; the calculating unit is configured to calculate center positions of the rotating shaft stopping at different positions during rotating a circle; the first judging unit judges whether the rotating shaft is bent or not according to a curve of the changed center positions, and outputs a test result of qualification if the rotating shaft is not bent. Users are able to determine whether the rotating shaft needs to be processed or not, to avoid causing destructive effects on the magnetic bearing system due to excessive bend degree of the rotating shaft.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: August 18, 2020
    Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Yusheng Hu, Weilin Guo, Daofu Hu, Yongling He, Bin Yang
  • Patent number: 10739754
    Abstract: The present disclosure is directed toward a method for monitoring health of a machining tool operable in a machining state to form a workpiece and a non-machining state. The method includes determining whether a machine health routine is to be performed based on a machine health record stored by the control system, and retrieving a non-machining cyclic schedule, in response to the machine health routine having to be performed, where the non-machining cyclic schedule defines a timetable for performing one or more maintenance routines. The method further includes identifying a primary maintenance routine from among the one or more maintenance routines based on the non-machining cyclic schedule, and scheduling the machine health routine with the primary maintenance routine.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: August 11, 2020
    Assignee: Ford Motor Company
    Inventors: Chandra Jalluri, Himanshu Rajoria, David Paul Low, Annette Januszczak, Paul Frederick Krotke, Stephen John Hermiller
  • Patent number: 10718740
    Abstract: According to one implementation, an ultrasonic test system includes an ultrasonic propagating body and an optical fiber sensor. The ultrasonic propagating body changes at least one traveling direction of at least one ultrasonic wave which propagates in a test target. The optical fiber sensor detects the at least one ultrasonic wave of which the at least one traveling direction has been changed by the ultrasonic propagating body.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: July 21, 2020
    Assignee: SUBARU CORPORATION
    Inventor: Kohei Takahashi
  • Patent number: 10718723
    Abstract: Various embodiments relating to resonance inspections and in-service parts are disclosed. One protocol (150) includes conducting a resonance inspection of an in-service part (152). The frequency response of the in-service part may be compared with a resonance standard (154) for purposes of determining whether or not the in-service part is changing abnormally (156). An in-service part that is identified as changing abnormally may be characterized as being “rejected” (160). An in-service part that is no identified as changing abnormally may be characterized as being “accepted” (158).
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: July 21, 2020
    Assignee: Vibrant Corporation
    Inventors: Lemna J. Hunter, Leanne Jauriqui, Greg Weaver
  • Patent number: 10705057
    Abstract: A precious material analyzer may determine one or more characteristics of an unidentified precious material. A vibration injector may cause the unidentified precious material to vibrate with a vibration signature that is dependent on the one or more characteristics of the unidentified precious material. A vibration detector may detect and extract a vibration signature from the vibration of the unidentified precious material caused by the vibration injector. A vibration signature comparator may: compare the detected vibration signature of the unidentified precious material with vibration signatures of multiple identified precious materials having one or more identified characteristics; and flag one or more of the identified precious materials that have vibration signatures that are similar to the vibration signature of the unidentified precious material.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: July 7, 2020
    Inventor: Baxton Chen
  • Patent number: 10698053
    Abstract: Described here are systems and methods for magnetic resonance imaging (“MRI”) using a sweeping frequency excitation applied during a time-varying magnetic field gradient. As an example, a gradient-modulated offset independent adiabaticity (“GOIA”) approach can be used to modify the pattern of the sweeping frequency excitation. Data are acquired as time domain signals and processed to generate images. As an example, the time domain signals are processed using a correlation between a Fourier transform of the gradient-modulated sweeping frequency excitation and a Fourier transform of the time domain signals.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: June 30, 2020
    Assignee: Regents of the University of Minnesota
    Inventors: Jinjin Zhang, Michael Garwood, Djaudat Idiyatullin, Curt Corum, Naoharu Kobayashi
  • Patent number: 10677685
    Abstract: A method for processing data obtained from a condition monitoring system, which comprises the step of obtaining dynamic signal data in the form of a time waveform and/or a Fast Fourier Transform (FFT) from at least one sensor. The method comprises the step of extracting at least two parameters from the time waveform and/or FFT and transmitting or displaying the at least two parameters instead of the dynamic signal time waveform data and/or a Fast Fourier Transform (FFT).
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: June 9, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventor: Allan Thomson
  • Patent number: 10634650
    Abstract: An ultrasonic mechanical defect and/or fault detection and monitoring system includes at least one ultrasonic fault detection device configured to measure ultrasonic emissions from an object under evaluation and to generate an output signal in response thereto. The system further includes at least one processor configured by code to receive the generated output signal; access a library of stored signal patterns; compare the generated output signal against the library of stored signal patterns; and generate an alert where the generated output signal matches at least one of the library of stored signal patterns.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: April 28, 2020
    Assignee: U.E. SYSTEMS, INC.
    Inventors: Mark A. Goodman, William Bishop, Gary Mohr
  • Patent number: 10627372
    Abstract: Vibration data indicative of the health of a machine is collected using a vibration sensor connected to a portable vibration data collector. After the vibration sensor has been attached to a measurement point on the machine, vibration data is collected over a measurement time period having a begin time and an end time, and the vibration data is stored in memory of the portable vibration data collector. First and second average amplitudes of the vibration data collected during first and second time windows in the measurement time period are determined. The slope of the vibration data is calculated based on the ratio of the amplitude difference between the first and second average amplitudes and the time difference between the first and second time windows. The vibration data is either retained in the memory or discarded based on the comparison of the slope to a threshold level.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: April 21, 2020
    Assignee: Computational Systems, Inc.
    Inventors: Stewart V. Bowers, III, William A. Davis
  • Patent number: 10551352
    Abstract: The invention concerns a method for ultrasounds detection of defects in a material, including the following steps: emission of ultrasounds from an ultrasonic emitting transducer positioned against to the material at an emission position, acquisition, by an ultrasonic receiving transducer placed against the material at the reception position, of at least one time signal, for each measurement position, determination of a normalisation term from the values taken by the time signal during an initial portion of the measurement duration corresponding to the reception of ultrasonic waves propagated at the surface of the material; for each measurement position, normalisation of the time signal over the measurement duration using the normalisation term to obtain a normalised time signal, processing of normalised time signals for different measurement positions to detect defects in the material.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: February 4, 2020
    Assignee: Electricite de France
    Inventors: Nicolas Paul, Paul Kassis
  • Patent number: 10546372
    Abstract: Embodiments of the present invention provide methods, machines, and a computer medium or media having computer programs to determine presence anomalies in circumferential welds of one or more pipelines transporting fluids associated with energy therethrough. Wave form analysis or pattern recognition in pipeline data such as magnetic flux leakage data is employed. A screening process, for example, does not affect or change how survey data is recorded such as in survey tools; only how it is analyzed after the survey data is completed. Embodiments of the machines, methods, and computer medium having computer programs can be used to screen for anomalies potentially threatening the structural integrity of the one or more pipelines so that site excavation can occur for confirmation and validation of the output results.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: January 28, 2020
    Assignee: Kinder Morgan, Inc.
    Inventors: Noel Duckworth, Tony Wright
  • Patent number: 10545120
    Abstract: A predictive diagnostics system for monitoring mechanical seals. The system autonomously detects a loss of lubrication within a sliding seal interface of a mechanical seal, the system including a loss of lubrication failure mode logic module configured to monitor data sensed by one or more sensors and diagnose conditions relating to a loss of lubrication within the sliding seal interface, and a plurality of other failure mode logic modules configured to monitor data sensed by the one or more sensors and diagnose conditions relating to specific types of mechanical failures known to occur in mechanical seal systems, the loss of lubrication failure mode logic module configured to determine which of the plurality of other failure mode logic modules are activated during the diagnosis of conditions related to a loss of lubrication within the sliding seal interface.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: January 28, 2020
    Assignee: JOHN CRANE UK LTD.
    Inventors: Klaus-Dieter Meck, Amrat Parmar, David Unsworth
  • Patent number: 10527585
    Abstract: An electromechanical transducer unit for a field device includes a membrane embodied to execute mechanical oscillations, two rods perpendicular to the membrane and secured to the membrane, a housing, wherein the membrane forms at least one portion of a wall of the housing, and wherein the two rods extend into the housing interior, two magnets, wherein each magnet is secured in an end region away from the membrane to a different one of the two rods, and a coil with a core, wherein the coil is secured above the magnets within the housing, and is contactable with an electrical, alternating current signal, wherein the coil is embodied to produce a magnetic field that causes the two rods via the two magnets to execute mechanical oscillations, and wherein the two rods are secured to the membrane such that oscillations of the membrane result from oscillations of the two rods.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: January 7, 2020
    Assignee: Endress+Hauser SE+Co. KG
    Inventors: Raphael Kuhnen, Dietmar Frühauf
  • Patent number: 10508968
    Abstract: Systems, methods and apparatuses for inspecting a tank containing a flammable fluid are provided. A vehicle configured to inspect the tank can include a propeller, a battery, a control unit, an inspection device, and a ranging device. The battery provides power to the propeller, the control unit, the inspection device, and the ranging device. The control unit generates a map of the tank. The control unit determines a first position of the vehicle on the map of the tank. The propeller moves the vehicle through the flammable fluid in the tank. The inspection device determines a quality metric of a portion of the tank. The control unit causes the propeller to move the vehicle from the first position to a second position within the tank. The control unit determines the quality metric for the portion of the tank at the second position within the tank, and stores the quality metric.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: December 17, 2019
    Assignee: Square Robot, Inc.
    Inventors: Jerome Vaganay, Eric Levitt, William O'Halloran
  • Patent number: 10502712
    Abstract: An ultrasound inspection apparatus for use with coordinate positioning apparatus is described. The apparatus includes a base module that is attachable to the moveable member of the coordinate positioning apparatus. The base module comprises an ultrasound transducer and a first connector portion. A plurality of coupling modules are also provided that each include a second connector portion that is releasably attachable to the first connector portion of the base module. The coupling modules also include a coupling element, which may be a sphere of self-lubricating material such as a hydro-gel, for contacting and acoustically coupling to an object to be inspected. This allows different coupling modules to be attached to the base module to perform different ultrasound inspection tasks.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: December 10, 2019
    Assignee: RENISHAW PLC
    Inventor: Liam Hall
  • Patent number: 10481104
    Abstract: Various embodiments relating to resonance inspections and in-service parts are disclosed. One protocol (150) includes conducting a resonance inspection of an in-service part (152). The frequency response of the in-service part may be compared with a resonance standard (154) for purposes of determining whether or not the in-service part is changing abnormally (156). An in-service part that is identified as changing abnormally may be characterized as being “rejected” (160). An in-service part that is no identified as changing abnormally may be characterized as being “accepted” (158).
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: November 19, 2019
    Assignee: Vibrant Corporation
    Inventors: Lemna J. Hunter, Leanne Jauriqui, Greg Weaver
  • Patent number: 10451618
    Abstract: A resonator sensor module is disclosed. The resonator sensor module includes one or more sensing resonators that includes binding sites for an analyte material; one or more reference resonators that lacks any binding sites for the analyte material; a module interface; and one or more switches each including a first position that operatively couples at least one of the one or more sensing resonators and the module interface and a second position that operatively couples at least one of the one or more reference resonators and the module interface.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: October 22, 2019
    Assignee: QORVO US, INC.
    Inventor: John Mark Tischer
  • Patent number: 10450132
    Abstract: A container security system is disclosed that includes force sensors and acceleration sensors attached to a lifting beam of a container handling device or to another part of a frame of the container handling device. The container security system also includes an electronics unit and an oscillation device attached to the lifting beam of the container handling device or to another part of the frame of the container handling device. The oscillation device creates oscillation of a container and contents of the container, and the container security system recognizes (i) a change in a condition of the container or the container contents as well as (ii) a change in an amount of the container contents between different container handling stages.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: October 22, 2019
    Assignee: CONEXBIRD OY
    Inventor: Teuvo Heikkilä
  • Patent number: 10444195
    Abstract: A method of detecting near surface inconsistencies in a structure is presented. A pulsed laser beam is directed towards the structure. Wide-band ultrasonic signals are formed in the structure when radiation of the pulsed laser beam is absorbed by the structure. The wide-band ultrasonic signals are detected to form data. The data is processed to identify a frequency associated with the near surface inconsistency.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: October 15, 2019
    Assignee: The Boeing Company
    Inventor: Jill Paisley Bingham
  • Patent number: 10447231
    Abstract: A vibration transducer includes a silicon substrate, a first oxide film formed on the silicon substrate, an activation layer formed on the first oxide film, a second oxide film formed on the activation layer, a polysilicon layer formed on the second oxide film, and a substrate contact part. A vibrator, a vibrator electrode electrically conducted with the vibrator, a fixed electrode close to the vibrator and a vacuum chamber configured to surround the vibrator are formed in the activation layer. The polysilicon layer forms a shell. The substrate contact part is configured to electrically conduct the polysilicon layer and the silicon substrate, and is formed to continuously surround the vacuum chamber in a region, in which the vibrator, the vibrator electrode and the fixed electrode of the activation layer are not formed, of the activation layer.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: October 15, 2019
    Assignee: Yokogawa Electric Corporation
    Inventors: Takeshi Mishima, Hiroshi Suzuki