For Flaw Or Discontinuity Detection Patents (Class 73/598)
  • Patent number: 10234375
    Abstract: This application discloses integrated probes and probe systems, which can be attached to the robotic arms of a remotely operated vehicle to perform both cathodic protection (CP) voltage measurements and ultrasonic testing (UT) thickness measurements at an underwater surface. In some embodiments, the integrated probe system couples an inner and outer gimbal together such that one or more electrically conductive legs pass from the outer gimbal through the inner gimbal. These legs are arranged about an ultrasonic sensor which extends from the front surface of the inner gimbal. When the integrated probe contacts the underwater surface, both the ultrasonic sensor and at least one leg contact the surface, thereby providing substantially simultaneous CP and UT measurements.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: March 19, 2019
    Assignee: Saudi Arabian Oil Company
    Inventors: Fadl Abdellatif, Hamad Al-Saiari, Ali Outa, Ayman Amer, Sahejad Patel, Ameen Obedan, Hassane Trigui
  • Patent number: 10151625
    Abstract: An inspection system includes a first ultrasonic probe positioned on and configured to move along a surface of a component. The first ultrasonic probe transmits ultrasonic energy. The inspection system also includes a second ultrasonic probe positioned on and configured to move along the surface of the component opposite the first probe. The second ultrasonic probe receives the ultrasonic energy transmitted by the first ultrasonic probe. Additionally, the inspection system includes a probe alignment system in communication with the first ultrasonic probe and the second ultrasonic probe. The probe alignment system is configured to analyze an energy characteristic for the ultrasonic energy received by the second ultrasonic probe to determine if a displacement characteristic for at least one of the first ultrasonic probe and the second ultrasonic probe requires adjustment.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: December 11, 2018
    Assignee: General Electric Company
    Inventor: Robert William Bergman
  • Patent number: 10101444
    Abstract: Disclosed are various systems and methods for remote surface sensing using guided surface wave modes on lossy media. One system, among others, includes a guided surface waveguide probe configured to launch a guided surface wave along a surface of a lossy conducting medium, and a receiver configured to receive backscatter reflected by a remotely located object illuminated by the guided surface wave. One method, among others, includes launching a guided surface wave along a surface of a lossy conducting medium by exciting a charge terminal of a guided surface waveguide probe, and receiving backscatter reflected by a remotely located object illuminated by the guided surface wave.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: October 16, 2018
    Assignee: CPG TECHNOLOGIES, LLC
    Inventors: James F. Corum, Kenneth L. Corum
  • Patent number: 9803976
    Abstract: A method and an apparatus for guided-wave tomographic measurement or monitoring of wall thicknesses of the walls of pipes and similar structures are disclosed. The method is characterized in that use is made of transducers (205) preferably positioned in at least two groups of a plurality of transducers (305?-305?) arranged in a spaced apart pattern on the external surface of the structures, the transducers individually transmit ultrasound signal into the pipe wall 204, in that each ultrasound signal propagates within the pipe wall 204 from the transmitting transducer and is received at one or several receiving transducers, and the received ultrasound signal is converted to an electrical signal by the receiving transducers and recorded by the transceiver (20). Measurements are performed by using a further plurality of transducers (406, 506) that are placed apart from the two groups of a plurality of transducers (305?-305?).
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: October 31, 2017
    Assignee: Clamp On AS
    Inventors: Francesco Simonetti, Geir Instanes
  • Patent number: 9772315
    Abstract: The present invention relates to a safety diagnosis method for a structure using a nonlinear ultrasonic wave modulation technique. The safety diagnosis method includes: making the structure vibrate by applying signals of different ultrasonic frequencies; converting the responses of the structure generated by the vibration into digital signals; extracting first modulation signals by subtracting the harmonic responses and the linear responses of the signals of different ultrasonic frequencies from the digital signals and synchronously demodulating the digital signals; constructing a first sideband spectrogram by combining the first modulation signals generated by continuously changing at least frequency among the signals of different ultrasonic frequencies; and deciding whether the structure is cracked based on the first sideband spectrogram.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: September 26, 2017
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Hoon Sohn, Hyung Jin Lim, Su Young Yang, Peipei Liu
  • Patent number: 9632062
    Abstract: An ultrasonic pipe measurement apparatus includes: a plurality of ultrasonic transceivers discretely disposed on a pipe wall of a pipe; and a control unit configured to control the plurality of ultrasonic transceivers and detect a generation point of damage caused in the pipe based on an ultrasonic signal exchanged between the ultrasonic transceivers.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: April 25, 2017
    Assignee: Yokogawa Electric Corporation
    Inventors: Yoshiaki Tanaka, Kazunori Miyazawa, Ken'ichi Kamada, Satoshi Kato, Yosuke Ishii, Sho Fujita, Yukiyo Akisada, Nobuo Okabe, Hiroaki Tanaka, Minako Terao
  • Patent number: 9599579
    Abstract: The method is for inspecting an infrastructure having a corrugated pipe at least partially surrounded by soil. The corrugated pipe has a cylindrical wall which is corrugated along a length thereof and forming a longitudinally extending series of corrugations. The method generally has the steps of emitting, outwardly from the interior of the corrugated pipe, a beam of radiation particles directed towards a given voxel positioned beyond an inner face of the cylindrical wall and along a scanning plane parallel to an orientation of individual ones of the corrugations of the cylindrical wall; detecting backscattered photons scattered back from the given voxel and along the scanning plane; and generating inspection data based on the detected backscattered photons associated with the given voxel for use in inspecting the corrugated pipe.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: March 21, 2017
    Assignee: Inversa Systems LTD.
    Inventor: Shawn Durette
  • Patent number: 9588086
    Abstract: An ultrasonic sensor assembly for testing a pipe includes a first and second transducer rings attached to the pipe and spaced apart along a length of the pipe. The first transducer ring includes a plurality of transmitters for transmitting a wave, such as a non-dispersive guided wave. The first transducer ring transmits the wave along the pipe. The second transducer ring includes a plurality of receivers for receiving the wave. A relative position of the first transducer ring with respect to a circumferential position of the second transducer ring is determined based on characteristics of the wave received by the second transducer ring. A method of positioning the ultrasonic sensor assembly on the pipe is also provided.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: March 7, 2017
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Wei Luo, James Norman Barshinger, Debasish Mishra, Anusha Rammohan
  • Patent number: 9575033
    Abstract: A method and apparatus for evaluating an object having a wrinkle. Energy is sent into the object at a plurality of locations using an array of transmitting elements. Reflected energy is received at an array of receiving elements in response to a portion of the energy being reflected off a plurality of layers in the object. A three-dimensional model of the wrinkle in the object is created based on the reflected energy received at the array of receiving elements.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: February 21, 2017
    Assignee: THE BOEING COMPANY
    Inventors: Gary E. Georgeson, William Joseph Tapia, Michael D. Fogarty, Hong Hue Tat, Richard H. Bossi, Robert L. Carlsen
  • Patent number: 9423380
    Abstract: The invention is directed to an ultrasonic inspection method, an ultrasonic test method, and an ultrasonic inspection apparatus that enable sizing to be executed even for a minute defect using an ultrasonic wave. A holder holds a transmitting probe for executing an angle beam method and a receiving probe for executing a vertical beam method. A motor and a guide rail form a movement mechanism for the transmitting probe and the receiving probe. In an ultrasonic test mode, the transmitting probe executes the angle beam method and transmits and receives an ultrasonic wave. In a sizing mode, the transmitting probe transmits an ultrasonic wave and the receiving probe receives this wave. A tip echo of a wave diffracted from a tip of a defect on a sample and a corner echo reflected from a corner of the defect are measured from a waveform received by the receiving probe.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: August 23, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Hirohisa Mizota, Naoyuki Kono
  • Patent number: 9417213
    Abstract: A method and apparatus comprises a transducer and an array of transducers. The transducer is associated with an object. The transducer has an elongate shape. The array of transducers is associated with the object. The array of transducers is substantially parallel to the transducer.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: August 16, 2016
    Assignee: THE BOEING COMPANY
    Inventor: Jeong-Beom Ihn
  • Patent number: 9289854
    Abstract: Superalloy components, such as service-degraded turbine blades and vanes, are clad by laser beam welding. The welding/cladding path, including cladding application profile, is determined by prior, preferably real time, non-contact 3D dimensional scanning of the component and comparison of the acquired dimensional scan data with specification dimensional data for the component. A welding path for cladding the scanned component to conform its dimensions to the specification dimensional data is determined. The laser welding apparatus, preferably in cooperation with a cladding filler material distribution apparatus, executes the welding path to apply the desired cladding profile. In some embodiments a post-weld non-contact 3D dimensional scan of the welded component is performed and the post-weld scan dimensional data are compared with the specification dimensional data.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: March 22, 2016
    Assignee: Siemens Energy, Inc.
    Inventors: Gerald J. Bruck, Ahmed Kamel
  • Patent number: 9239316
    Abstract: An object information acquiring apparatus has: a holding unit which holds an object; a probe which receives an acoustic wave generated in the object via the holding unit and converts the acoustic wave to an electrical signal; a force measuring unit which measures a force applied to the object when the object is held by the holding unit; a sound speed acquiring unit which determines a sound speed in the object by using the force measured by the measuring unit and a contact area between the object and the holding unit; and a generating unit which generates object information data from the information about the sound speed determined by the sound speed acquiring unit and the electrical signal.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: January 19, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Toshinobu Tokita
  • Patent number: 9038469
    Abstract: A method and apparatus for identifying an inconsistency. A number of waves that propagate through a structure are generated. A response signal is generated in response to detecting at least a portion of the number of waves that propagate through the structure. A determination is made as to whether the response signal includes a reflected component. A presence of the inconsistency in the structure is indicated when the response signal includes the reflected component.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: May 26, 2015
    Assignee: THE BOEING COMPANY
    Inventors: Hoon Sohn, Hyung Jin Lim, Chul Min Yeum, Jeong-Beom Ihn
  • Patent number: 8966983
    Abstract: The invention relates to a method and a device for the contactless detection of laminated, flat objects, particularly sheet-like recording media. There is a galvanic separation and mechanical decoupling between the transmitter and receiver to improve detection. These measures can be further improved with correction characteristic methods.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: March 3, 2015
    Assignee: Pepperl + Fuchs GmbH
    Inventor: Dierk Schoen
  • Publication number: 20150053009
    Abstract: A system for defect detection in plate like structures is disclosed. The system comprises a plurality of transducers configured to be coupled to a periphery of complex-plate structure. A controller is electrically coupled to the plurality of transducers. The controller includes a machine readable storage medium and a processor in signal communication with the machine readable storage medium. The processor is configured to generate a plurality of guided wave signals using a first set of the plurality of transducers, receive the plurality of guided wave signals at a second set of the plurality of transducers, and generate tomographic pseudo-image of structural changes of the complex-plate structure based on the plurality of guided wave signals received at the second set of the plurality of transducers.
    Type: Application
    Filed: August 22, 2014
    Publication date: February 26, 2015
    Inventors: Fei Yan, Cody Borigo, Steven E. Owens, Joseph L. Rose
  • Publication number: 20150027227
    Abstract: A crack and thickness detecting apparatus for detecting a crack in a wafer and also detecting the thickness of the wafer. The apparatus includes an ultrasonic oscillating unit oscillating a first ultrasonic wave toward the upper surface of the wafer at a predetermined incident angle, an ultrasonic oscillating and receiving unit oscillating a second ultrasonic wave toward the upper surface of the wafer in a direction perpendicular thereto and also receiving reflected waves obtained by the reflection of the first and second ultrasonic waves from the wafer, a crack determining unit determining whether or not the crack is present in the wafer according to the first reflected wave, and a thickness calculating unit calculating the thickness of the wafer according to the second reflected wave. The ultrasonic oscillating and receiving unit alternately receives the first reflected wave and the second reflected wave.
    Type: Application
    Filed: July 24, 2014
    Publication date: January 29, 2015
    Inventor: Takayuki Masada
  • Patent number: 8931345
    Abstract: An apparatus for measuring the strength of concrete using a surface wave velocity including an ultrasonic transmission and reception probe is provided. The apparatus is configured to include a surface wave velocity measurement device including an ultrasonic transmission probe and an ultrasonic reception probe. Further, a method of constructing the slip form of a concrete column member is provided. The method is capable of reducing the construction period by raising a concrete form rapidly and safely using a method of determining the slip-up time of the slip form based on the strength of concrete measured by the apparatus.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: January 13, 2015
    Assignee: Korea Institute of Construction Technology
    Inventors: Hee Seok Kim, Young Jin Kim, Won Jong Chin, Hye Jin Yoon, Byung Suk Kim
  • Publication number: 20140366633
    Abstract: The invention relates to novel processes for determining the quality of an uncrosslinked rubber mixture by means of ultrasound and to an apparatus suitable for this purpose.
    Type: Application
    Filed: July 27, 2012
    Publication date: December 18, 2014
    Applicant: RHEIN CHEMIE RHEINAU GMBH
    Inventors: Andreas Schroeder, Lars Wawrzinski, Ludwig Graeff
  • Publication number: 20140352436
    Abstract: A coupling wedge for use with a ultrasounic phased array inspection system has a body with a bottom side configured to face the object to be tested and a front side generally oriented at an angle to the bottom side and a top side to be coupled with a phased array probe. The probe includes a plurality of apertures. The front side of the wedge has grooves formed with a plurality of reflectors that are positioned on the front side of the wedge, leaving a distance from the bottom side. The change in TOF values from the reflector to a specific aperture enable the determination of the temperature change in the wedge. An alarm to an operator or alternation of focal laws in the system for temperature compensation can be applied.
    Type: Application
    Filed: May 31, 2013
    Publication date: December 4, 2014
    Inventor: Jinchi ZHANG
  • Patent number: 8875580
    Abstract: A method and apparatus for evaluating and/or quantifying damage to wire strands of a wire caused during installation of a crimped wire connector, involves launching an ultrasonic wave having known characteristics into a wire at a location that is either the crimp or is adjacent the crimped wire connector, and detecting changes in the characteristics (e.g., amplitude and/or phase shift) of the wave as it is propagates along a length of the wire.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: November 4, 2014
    Assignee: The United States of America as represented by the Adminstrator of the National Aeronautics and Space Adminstration
    Inventors: William T. Yost, Karl Elliott Cramer, Daniel F. Perey
  • Patent number: 8869621
    Abstract: A geometry compensating transducer attachment for ultrasonic inspection of a structure includes a geometry-compensating structure having at least one angled surface configured to engage the structure to be inspected, and the geometry-compensating structure having an acoustic velocity generally matching an acoustic velocity of the structure to be inspected.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: October 28, 2014
    Assignee: The Boeing Company
    Inventors: Jeffrey R. Kollgaard, Barry A. Fetzer, Christopher R. Brown, William J. Tapia, David Brooks
  • Publication number: 20140305216
    Abstract: An automated blade crawler capable of scanning a multiplicity of non-destructive inspection sensors over a surface of an airfoil-shaped body such as a blade component. The blade crawler is movable in a spanwise direction, thereby enabling a sensor array to inspect the surface area on one or both sides of the blade component in one pass. The sensors concurrently output scan imaging data which is multiplexed, the multiplexed being transmitted (via an electrical cable or wirelessly) to data collection and display hardware at an operations control center.
    Type: Application
    Filed: April 16, 2013
    Publication date: October 16, 2014
    Applicant: The Boeing Company
    Inventors: Joseph L. Hafenrichter, Gary E. Georgeson, William Joseph Tapia, Michael D. Fogarty
  • Patent number: 8826738
    Abstract: The structural integrity of a safe-life aircraft component on an aircraft is measured and assessed by a processing unit. The component includes a load-bearing metal element that is free from cracks. In the method, acoustic emissions generated in the metal element are converted into electronic signals. The acoustic emissions converted include relevant acoustic emissions resulting from changes in the structure of the element that make the element more susceptible to the formation of cracks. The electronic signals are set to a processing unit. The processing unit processes over time the signals in conjunction with stored reference data that allows a measure of the structural integrity to be made. Information providing a measure of the structural integrity of the aircraft component is outputted. Thus, deterioration of the structure of the component can be detected and monitored before a crack occurs.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: September 9, 2014
    Assignee: Airbus Operations Limited
    Inventors: Murad El-Bakry, Kathryn Jane Atherton, Christophe Armand Nicolas Paget
  • Patent number: 8820137
    Abstract: A method of determining the void rate in a biphase gas/liquid medium, corresponding to the volume fraction of gas corresponding to the presence of bubbles in the liquid medium in a total volume of gas and liquid, comprises: deployment of a bulk elastic wave resonator in contact and coupled acoustically with the biphase medium; measurement by nonlinear resonant ultrasound spectroscopy of the biphase medium comprising the scanning in terms of frequencies and amplitudes in a given range of frequencies and in a given range of amplitudes, of bulk elastic waves emitted and detected at said resonator placed in said medium and leading a set of resonance curves exhibiting maxima; determination of a straight line defined by the set of maxima of said curves and of the slope of said straight line; determination of the void rate on the basis of said slope. The method may be applied to a nuclear reactor.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: September 2, 2014
    Assignee: Commissariat a l'Energie Atomique et Aux Energies Alternatives
    Inventors: Matthieu Cavaro, Cédric Payan
  • Patent number: 8770027
    Abstract: The invention relates to a nondestructive ultrasonic test method in which at least one ultrasonic pulse is emitted into a workpiece under test by at least one ultrasonic transmitter (3), the ultrasonic pulse is reflected on boundary surfaces within the workpiece, the reflected ultrasound is received by at least one ultrasonic receiver (2), and the associated signals are evaluated, the ultrasound penetrating a damping block (4) that is arranged between the workpiece and the transmitter or receiver.
    Type: Grant
    Filed: September 7, 2009
    Date of Patent: July 8, 2014
    Assignee: GE Sensing & Inspection Technologies GmbH
    Inventors: York Oberdoerfer, Michael Berke, Wolf-Dietrich Kleinert, Jerome Poirier, Sascha Schieke
  • Patent number: 8746069
    Abstract: An ultrasound time-of-flight diffraction reference block has a plurality of notches that extend into the block to simulate cracks, wherein the notches have a normal and transverse orientation with respect to a test path formed on the block.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: June 10, 2014
    Assignee: Fluor Technologies Corporation
    Inventor: Dennis Smythe
  • Publication number: 20140144239
    Abstract: The present invention relates to a method of non-destructive inspection of mechanical structures (2) by using vibratory waves in order to detect local defects and/or changes of state. According to the invention, the method comprises: a first training stage in which a transient vibratory excitation is injected into an inspection zone (Z) and the received signals are picked up and time reversed in order to constitute reference excitation signals; a second training stage in which the reference excitation signals are emitted simultaneously and the resulting diverging signals are picked up in order to constitute reference response signals; and a stage of inspecting the mechanical structure (2), in which the reference excitation signals are emitted, the resulting diverging signals are picked up, and the diverging signals are compared with the reference response signals.
    Type: Application
    Filed: July 3, 2012
    Publication date: May 29, 2014
    Inventors: Pascal Vouagner, Jean-Louis Guyader, Jacques Charvin
  • Patent number: 8694271
    Abstract: Apparatus and method for non-invasive measuring of the sound velocity of a fluid, such as a liquid, flowing in a tubing having points of two different and known transverse length has one sensor mounted at each point connected to a circuit that provides signals to each sensor that are returned to it after passing through the tubing wall and flowing fluid and reflection from the tubing internal wall opposing each sensor and from which the round trip transit time of the signals is measured and the sound velocity calculated from the two measured round trip transit times and the differential between the known transverse lengths. Flexible tubing is placed in the slot of a measuring head which deforms it to provide the two points at one location or the slot has two sections of different transverse length along its length with a point at each section.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: April 8, 2014
    Assignee: Hema-Q, Inc.
    Inventor: Naim Dam
  • Patent number: 8677826
    Abstract: A method and device are disclosed for evaluating received signals acquired during non-destructive ultrasonic testing of a test body, wherein ultrasound waves are generated inside the test body with an electromagnetic ultrasonic transducer acting as an ultrasound transmitter and ultrasound waves which propagate within the test body are converted into received signals with an electromagnetic ultrasonic transducer acting as an ultrasound receiver. The received signals are evaluated for the purpose of examining the test body.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: March 25, 2014
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Hans-Jürgen Salzburger, Frank Niese
  • Patent number: 8671761
    Abstract: A method of assessing bolted joint integrity. A guided wave is sent through a structure containing at least one bolted joint. The guided wave that is subsequently propagated through the structure and interacted with the bolted joint is measured to obtain a measured result. At least one parameter of the guided wave after its travel through the structure, and after having been affected by a nonlinear acoustic behavior of the bolted joint, is analyzed. Either at least one guided wave parameter is compared to a wave propagation pattern of the bolted joint at a correct torque level, or variation of at least one guided wave parameter is compared, to determine changes in wave propagation time and/or wave propagation shape. An incorrect torque level of the bolted joint is inferred from any changes that are determined.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: March 18, 2014
    Assignee: New Mexico Technical Research Foundation
    Inventors: Andrei Zagrai, Derek Doyle
  • Patent number: 8631683
    Abstract: A dialysis system that includes a dialysis machine, a tube connected to the dialysis machine, and a sensor system. The sensor system includes a head having a slot configured to receive the tube and a plurality of sensors secured to the head adjacent the slot. At least one of the plurality of sensors includes a light emitting element configured to transmit light through the tube when the tube is disposed in the slot and a light receiving element configured to receive the light emitted by the light emitting element after the light passes trough the tube.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: January 21, 2014
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Naim Dam, Martin Joseph Crnkovich, Roland Levin
  • Patent number: 8627724
    Abstract: A non-intrusive sensor for in-situ measurement of recession rate of heat shield ablatives. An ultrasonic wave source is carried in the housing. A microphone is also carried in the housing, for collecting the reflected ultrasonic waves from an interface surface of the ablative material. A time phasing control circuit is also included for time-phasing the ultrasonic wave source so that the waves reflected from the interface surface of the ablative material focus on the microphone, to maximize the acoustic pressure detected by the microphone and to mitigate acoustic velocity variation effects through the material through a de-coupling process that involves a software algorithm. A software circuit for computing the location off of which the ultrasonic waves scattered to focus back at the microphone is also included, so that the recession rate of the heat shield ablative may be monitored in real-time through the scan-focus approach.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: January 14, 2014
    Assignee: Alliant Techsystems Inc.
    Inventors: George Papadopoulos, Nicholas Tiliakos, Gabriel Benel, Clint Thomson
  • Publication number: 20140000369
    Abstract: A method of measuring a crystallographic orientation of an object using an ultrasonic transducer and a detector array including a plurality of ultrasonic detectors includes: determining a minimum distance between the transducer and the detector of the detector array closest to the transducer; placing the transducer and the detector array in contact with a surface of the object such that the transducer and the detector of the detector array closest to the transducer are separated by at least the minimum distance; using the transducer to generate an ultrasonic surface wave pulse in the surface of the object, the ultrasonic surface wave pulse having a pulse duration and including a longitudinal surface wave and a Rayleigh wave; and measuring a time of flight of a surface wave generated by the transducer between the transducer and each detector of the array to determine the crystallographic orientation of the object.
    Type: Application
    Filed: June 13, 2013
    Publication date: January 2, 2014
    Inventor: Christopher John Leslie LANE
  • Patent number: 8601875
    Abstract: The invention locates impaired sections of a pipeline, such as sections where the wall of the pipeline has been weakened or thinned. It provides a moveable device which passes through the pipeline and which has a first station. The moveable device has means to locate its position accurately. There is a second station, which is mounted either on the moveable device or in association with a fixed location on the pipeline wall. Either the first station or the second station has an acoustic or seismic pulse generator, and the other has a pulse receiver. The time taken for a pulse to travel from the pulse generator to the receiver is found to vary with the condition of the pipeline wall at the location where the moveable device is located at the time it receives (or sends) the pulse. The rate of change of velocity of the pulse as the device passes different locations in the pipeline is also found to vary with the condition of the pipeline wall at such location.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: December 10, 2013
    Assignee: Pure Technologies Ltd.
    Inventor: Peter O. Paulson
  • Patent number: 8596127
    Abstract: The invention relates to a method for processing signals which are generated by the reflection of ultrasonic waves by defects in the surface of objects during the non-destructive testing of objects such as pipes, bars, sheet metal, or uniform and complex carbon-fiber components. Said method comprises the following steps: emission of a complete wavefront onto at least one test section of the object, using a plurality of independent emission elements; receiving a wave reflected by the structure of the object by means of a plurality of receiver elements that are independent of one another; digitalization of the signals received by the receiver elements in digitizing steps; continuous modification of delay values and/or the number of receiver elements for each digitalization step (on-the-fly).
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: December 3, 2013
    Assignee: GE Inspection Technologies
    Inventors: Stephan Falter, Roman Koch, Walter De Odorico, Gerhard Finger, Klaus-Peter Busch
  • Publication number: 20130269441
    Abstract: A method for determining a pathology of a tissue sample. The method includes steps of coupling the tissue sample between two oppositely-facing ultrasonic transducers; acquiring a pulse-echo ultrasonic measurement and a through-transmission ultrasonic measurement of the tissue sample using the ultrasonic transducers; analyzing at least one of the pulse-echo ultrasonic measurement and the through-transducer transmission ultrasonic measurement using time domain analysis; analyzing at least one of the through-transmission ultrasonic measurements and the pulse-echo ultrasonic measurements using frequency domain analysis; and determining the pathology of the tissue sample based on at least one of the time domain analysis and the frequency domain analysis.
    Type: Application
    Filed: November 14, 2011
    Publication date: October 17, 2013
    Applicants: UTAH STATE UNIVERSITY, UNIVERSITY OF UTAH RESEARCH FOUNDATION
    Inventors: Timothy E. Doyle, Leigh A. Neumayer
  • Patent number: 8559696
    Abstract: Scattered waves from the defect of burst ultrasonic waves radiated from an ultrasonic transmitter to a structure in two different arrangements of the ultrasonic transmitter and an array receiver are received by the array receiver so as to obtain a reception signal. The reception signal is subjected to a band-pass filter that passes a specific frequency component, shifted by different time according to the position of each reception sensor element of the array receiver and then, added so as to obtain a processing signal. On the basis of the processing signal, an image of the defect is obtained, respectively. A common portion of the obtained two images is extracted.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: October 15, 2013
    Assignee: Tohoku University
    Inventors: Kazushi Yamanaka, Yoshikazu Ohara, Yohei Shintaku
  • Publication number: 20130263667
    Abstract: Pipeline wall thickness is measured as a function of position using ultrasound propagation. A series of predictive models is used, which define predictions of the ultrasound response signals as a function of different sets of parameters. The different sets that are determine of position dependent ultrasound speed at different sound frequencies and different spatial resolution. Successive iterative fitting process are executed, each fitting a combination of values of a successive set of parameters to the detected ultrasound response signals according to a respective model, using the values fitted values from the previous fitting process to initialize the next set of parameters for iterative fitting.
    Type: Application
    Filed: October 7, 2011
    Publication date: October 10, 2013
    Applicant: Nederlandse Organisatie voor toegepastnatuuwetenschappelijk onderzoek TNO
    Inventors: Arno Willem Frederik Volker, Joost Gerardus Petrus Bloom
  • Patent number: 8544328
    Abstract: A method and apparatus for detecting an inconsistency in an object. A signal sent from a first transducer unit is received at a second transducer unit. The signal is sent along a path through an object from the first transducer unit to the second transducer unit. The second transducer unit has segments. A velocity is identified at each segment in the segments for a number of modes for the signal to form identified velocities. A determination is made as to whether the inconsistency is present along the path through the object using the identified velocities for the number of modes for the signal.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: October 1, 2013
    Assignee: The Boeing Company
    Inventors: Hoon Sohn, Chul Min Yeum, Jeong-Beom Ihn
  • Patent number: 8499632
    Abstract: A method for inspecting a laminate structure may include transmitting a lamb wave through a selected portion of the laminate structure from an actuator at a predetermined location on a surface of the laminate structure. The method may also include receiving the transmitted lamb wave at a sensor at another predetermined location on the surface of the laminate structure. The method may additionally include detecting and characterizing an anomaly in the laminate structure based on the received lamb wave.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: August 6, 2013
    Assignee: The Boeing Company
    Inventors: Jeong-Beom Ihn, Justin Kearns
  • Patent number: 8486545
    Abstract: Systems and methods for flaw detection and monitoring at elevated temperatures with wireless communication using surface embedded, monolithically integrated, thin-film, magnetically actuated sensors, and methods for fabricating the sensors. The sensor is a monolithically integrated, multi-layered (nano-composite), thin-film sensor structure that incorporates a thin-film, multi-layer magnetostrictive element, a thin-film electrically insulating or dielectric layer, and a thin-film activating layer such as a planar coil. The method for manufacturing the multi-layered, thin-film sensor structure as described above, utilizes a variety of factors that allow for optimization of sensor characteristics for application to specific structures and in specific environments. The system and method integrating the multi-layered, thin-film sensor structure as described above, further utilizes wireless connectivity to the sensor to allow the sensor to be mounted on moving components within the monitored assembly.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: July 16, 2013
    Assignee: Southwest Research Institute
    Inventors: Bruce R. Lanning, Glenn M. Light, Stephen J. Hudak, Jr., James A. Moryl
  • Publication number: 20130160551
    Abstract: According to an embodiment, an ultrasonic flaw detection device is provided with: an ultrasonic probe, which applies ultrasonic waves, by driving a plurality of ultrasonic elements, to a test object to be inspected, and which receives reflected ultrasonic waves from the test object; and an analysis unit, which analyzes the signals of the reflected ultrasonic waves received by the ultrasonic probe, and which calculates the flaw detection results. The analysis unit calculates the flaw detection results using an ultrasonic wave propagation path obtained on the basis of the surface information of the test object having the ultrasonic waves applied thereto, thereby obtaining highly accurate detection results even the surface of the test object is formed in complex shape.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 27, 2013
    Inventors: Takahiro MIURA, Setsu YAMAMOTO, Makoto OCHIAI, Takeshi HOSHI, Kazumi WATANABE, Satoshi NAGAI, Masahiro YOSHIDA, Hiroyuki ADACHI, Tadahiro MITSUHASHI, Satoshi YAMAMOTO
  • Patent number: 8468892
    Abstract: An ultrasonic sensor for detecting and/or scanning an object includes a substrate and a piezoelectric sensor unit arranged on or at this substrate and/or connected to this substrate. The rear side of the substrate facing away from the piezoelectric sensor unit has a surface structure including a plurality of elevated portions and recesses, with this surface structure being configured so that a diffuse scattering of ultrasonic waves incident on the rear side from the direction of the sensor unit takes place by it; and/or in that its elevated portions and/or recesses have a mean lateral extent in the range of 0.05 ?m to 1 mm, preferably from 0.1 ?m to 200 ?m, preferably from 0.2 ?m to 20 ?m, and/or a mean lateral extent which is smaller than or equal to the wavelength of an ultrasonic wave which can be produced by the piezoelectric sensor unit.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: June 25, 2013
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angerwandten Forschung E.V.
    Inventors: Thomas Herzog, Henning Heuer
  • Publication number: 20130152689
    Abstract: The invention relates to a method and a device for the contactless detection of laminated, flat objects, particularly sheet-like recording media. There is a galvanic separation and mechanical decoupling between the transmitter and receiver to improve detection. These measures can be further improved with correction characteristic methods.
    Type: Application
    Filed: July 26, 2012
    Publication date: June 20, 2013
    Inventor: Dierk Schoen
  • Publication number: 20130145849
    Abstract: A method and apparatus for evaluating and/or quantifying damage to wire strands of a wire caused during installation of a crimped wire connector, involves launching an ultrasonic wave having known characteristics into a wire at a location that is either the crimp or is adjacent the crimped wire connector, and detecting changes in the characteristics (e.g., amplitude and/or phase shift) of the wave as it is propagates along a length of the wire.
    Type: Application
    Filed: December 13, 2011
    Publication date: June 13, 2013
    Applicant: U.S.A. as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: William T. Yost, Karl Elliott Cramer, Daniel F. Perey
  • Patent number: 8453510
    Abstract: Methods and systems are provided for evaluating rock specimens subjected to high pressures and temperatures by ultrasonic evaluation utilizing various transducer enhancements. Certain embodiments contemplate configuring ultrasonic evaluation systems to provide more accurate measurements, enhanced protection of transducer elements, fewer metal interfaces between transducer elements and test specimens, and easier access to transducer elements for maintenance and replacement. Additionally, certain embodiments allow for sequential or simultaneous p-wave and s-wave measurements of a test specimen. These enhancements translate into a more accurate and efficient ultrasonic evaluation system offering higher resolution measurements.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: June 4, 2013
    Assignee: ConocoPhillips Company
    Inventors: David M. Chancellor, Gangerico G. Ramos
  • Patent number: 8438926
    Abstract: The present invention provides a method which allows simply, easily and accurately evaluating the fastening state of shoulder parts of a threaded joint for use as a joint of pipes or tubes, such as OCTG, during fastening or after fastening. The fastening state evaluation method for a threaded joint 100 of pipes or tubes according to the present invention is characterized in that it transmits ultrasonic surface waves from the internal surface of either one of the pin 1 and the box 2 toward the internal surface of the other one of the pin 1 and the box 2 through the shoulder parts 13, 23 of the pin 1 and the box 2, and on the basis of the transmitted wave intensity or the reflected wave intensity thereof, determines whether or not the fastening state of the threaded joint 100 is satisfactory.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: May 14, 2013
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Ikuji Hoshino, Masaki Yamano, Makoto Sakamoto, Keiichi Nakamura, Jun Masubuchi, Kenta Sakai
  • Publication number: 20130111995
    Abstract: The invention relates to a method of nondestructive and contactless testing of components (3), wherein ultrasonic waves (6) are irradiated onto the surface of the component (3) at a predefinable, non-perpendicular angle of incidence (9) using an ultrasonic transmission sound transducer (1) arranged spaced apart from the surface of the component (3) and the intensity of the ultrasonic waves (7) reflected from the surface of the component (3) is detected with time resolution and/or frequency resolution by the antenna array elements (2n) of an ultrasonic antenna array (2) configured for detecting ultrasonic waves (7) and the phase shift of the ultrasonic waves guided at the surface of the test body is determined therefrom with respect to the ultrasonic waves (7) directly reflected at the surface of the component (3).
    Type: Application
    Filed: July 14, 2011
    Publication date: May 9, 2013
    Inventors: Bernd Koehler, Martin Barth, Joachim Bamberg, Hans-Uwe Baron
  • Patent number: 8402829
    Abstract: A device for determining the internal structure of a bone along a path directed into the bone (or other tissue) is disclosed. The device comprises a nozzle fluidically connected to a liquid reservoir for providing a liquid jet directed at the bone in the direction of the path; an ultrasonic transducer for generating ultrasonic waves through the liquid jet and for detecting echoes of the ultrasonic waves caused by changes in the acoustical impedance in the bone characterizing changes in the structure of the bone along the path; and an analyzer for interpreting the echoes into meaningful information relating to the location of the structural changes along the path.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: March 26, 2013
    Assignee: Jet-Guide Ltd.
    Inventors: Jacob Halevy-Politch, Andre Craft