For Flaw Or Discontinuity Detection Patents (Class 73/598)
  • Patent number: 11305133
    Abstract: We provide a novel technique for coupling focused ultrasound into the brain. The ultrasound beam can be used for therapy or neuro-modulation. We excite a selected Lamb wave mode in the skull that mode converts into longitudinal waves in the brain. The benefits of our approach is in improved efficiency, reduction in heating of the skull, and the ability to address regions in the brain that are close or far from the skull.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: April 19, 2022
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Butrus T. Khuri-Yakub, Kamyar Firouzi
  • Patent number: 11169121
    Abstract: An ultrasonic flaw detection method and device identifies echoes appearing in flaw detection images. By selecting and controlling combinations of transmitting elements and receiving elements, plural waveform signals c are recorded. For each position in an inspection object, intensities of plural waveform signals are extracted based on the propagation time of ultrasonic waves and are totalized. A flaw detection image showing distribution of totalized intensities is generated. By selectively using at least three sound velocities for calculating propagation time of ultrasonic waves, at least three flaw detection images are generated. The areas of at least three echoes respectively appearing in the flaw detection images are calculated and the echo area which is the smallest is identified according to whether or not the flaw detection image showing the echo is one generated using one of a longitudinal sound velocity, a transverse sound velocity and a medium sound velocity.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: November 9, 2021
    Assignee: HITACHI-GE NUCLEAR ENERGY, LTD.
    Inventors: Sou Kitazawa, Hidetaka Komuro, Junichiro Naganuma, Kazuya Ehara
  • Patent number: 11072125
    Abstract: A method includes generating correction data for a construction material that is used by an additive-manufacturing machine to manufacture an object. This correction data compensates for an interaction of the construction material with first radiation that has been used to illuminate the construction material.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: July 27, 2021
    Assignee: Inkbit, LLC
    Inventors: Aaron Weber, Desai Chen, Harrison Wang, Gregory Ellson, Wojciech Matusik
  • Patent number: 11029231
    Abstract: An assessing device capable of assessing presence or absence of local damage in a structure is provided. The assessing device includes a dominant frequency identifying unit that identifies a dominant frequency of a vibration at each of a plurality of spots in a structure, based on information indicating the vibration at each of the plurality of spots, a phase difference identifying unit that identifies a phase difference at the dominant frequency between the vibrations at the plurality of spots, based on the dominant frequency and information indicating the vibrations; and an assessing unit that assesses damage in the structure, based on the phase difference.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: June 8, 2021
    Assignee: NEC CORPORATION
    Inventors: Shohei Kinoshita, Shigeru Kasai
  • Patent number: 10955382
    Abstract: An experimental device for studying the propagation characteristics of stress wave in jointed rock mass at high temperatures. The device includes a launch system, a loading system, a measuring system and a heating device. The heating device can be heated in sections to meet complicated test requirements. The measuring system includes two sets of measuring devices to ensure test accuracy. One measuring device uses a strain gauge to measure the local displacement of rock, thus obtaining the change of wave velocity; this method can be used when sample temperature is low. The other device adopts digital image processing technology. The experimental device can control the initial wave form and initial wave velocity, which can better meet the test requirements. The position of the sample can be fine-tuned to avoid the impact of errors left by rock processing on the test results.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: March 23, 2021
    Assignee: BEIJING UNIVERSITY OF TECHNOLOGY
    Inventors: Lifeng Fan, Lijuan Wang, Chao Xu
  • Patent number: 10921292
    Abstract: A supersonic inspection jig has an insertion section 22 inserted into a hole 10 of an inspection target 1, and a flange section 23 connected with the insertion section 22 and contacting the inspection target 1. The flange section 23 has a flange section first surface 231 which is a surface on the side contacting the inspection target 1 and a flange section second surface 232 which is a surface on the side contacting the probe 41. A position limiting section 26 is provided on the flange section second surface 232 to limit the position of the probe 41 so that the probe 41 is maintained in a position separate from a central axis C of the hole 10. Thus, the inspection around the hole becomes easily executable.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: February 16, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hiroshi Takemoto, Yoshiharu Kuze, Mitsuyoshi Uematsu, Seiji Kobayashi
  • Patent number: 10871472
    Abstract: A welding portion inspection device includes a device body, a probe, a sound propagation medium, an elastic support mechanism configured to allow the probe and the sound propagation medium to be elastically supported to the device body, and a guide member formed of a material higher in hardness than a metal plate. The guide member is disposed such that a first part is positioned on a side of the sound propagation medium and second parts protrude beyond a tip surface of the sound propagation medium. The probe is configured to oscillate a ultrasonic wave such that the ultrasonic wave is emitted to a welding portion of the metal plate through the sound propagation medium and perform inspection of the welding portion based on a detected reflected wave of the ultrasonic wave in a state where the tip surface of the sound propagation medium faces the welding portion.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: December 22, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takao Sekiguchi
  • Patent number: 10871408
    Abstract: A breakage point is detected as a change point from raw data and the data is divided before and after the breakage point to obtain divided data D1 and D2. When the low-pass filtering is performed on each of the divided data D1 and D2 (step S13) and the filtering for all divided data ends, time-series data whose natural frequency is removed is reconstructed before and after the breakage point. When the reconstruction data are connected at the breakage point, it is possible to restore the time-series data of the test force to the time-series data whose natural vibration of the test machine body is removed while taking advantage of a change in test force at the breakage point.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: December 22, 2020
    Assignee: Shimadzu Corporation
    Inventor: Tohru Matsuura
  • Patent number: 10823704
    Abstract: A method for inspecting a condition of an elongated load bearing member of a rope of a hoisting apparatus, such as an elevator includes ultrasound scanning one or more regions of the load bearing member with an ultrasonic scanner. A method for inspecting a condition of a rope of a hoisting apparatus, such as an elevator, which rope includes at least one load bearing member includes inspecting at least one load bearing member of the rope with an ultrasound scanner.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: November 3, 2020
    Assignee: KONE CORPORATION
    Inventors: Mikko Puranen, Hannu Lehtinen
  • Patent number: 10803573
    Abstract: A method for automatic defect inspection in wheel shaped casting products is provided, and the three major phases contain preprocessing samples, offline training and online inspection. Specific steps include: collecting and preprocessing training samples, dividing them into three kinds of spoke, rim and axle samples; offline training with the aforementioned three kinds of samples, then generating online detectors respectively for spokes, rims and axles; uploading the well-trained spoke, rim and axle CNN defect detector to the upper computer, placed it in automatic production inspection line. Inspect for defects online automatically. The defect inspection system outputs signals according to the user's requirements. The present invention has a high level of accuracy and reliability, and a strong robustness to variations in illumination, shooting angle and the position of the work piece. It delivers a high level of automation and has no need for an operator to adjust any significant parameters.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: October 13, 2020
    Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
    Inventors: Qian Huang, Weixin Yan
  • Patent number: 10768148
    Abstract: The invention relates to a method for testing of a train wheel by ultrasound. The method is based on a pulsed ultrasonic field in the train wheel to be tested by an array of individually controllable ultrasonic transmitting transducers acoustically coupled to the train wheel each controlled with a specific analog transient excitation signal. Each analog transient excitation signal generated based on an ultrasonic transmitting transducer-specific stored digital transient excitation function. The resulting echo signals from the train wheel to be tested are recorded by an array of individually controllable ultrasonic receiving transducers. Each ultrasonic receiving transducer can provide an analog, time-resolved echo signal. The received echo signals can be digitized in a transducer-specific way and stored in a set. A plurality of different reception processing rules can then be applied to the latter. Furthermore, the invention relates to a device for carrying out the method.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: September 8, 2020
    Assignee: GE Sensing & Inspection Technologies, GmbH
    Inventors: Stephan Falter, Luca Scaccabarozzi
  • Patent number: 10765892
    Abstract: Systems and methods for predicting a phase correction of ultrasound waves transmitted from one or more transducer elements and traversing a patient's skull into a target region utilizing data of the patient's skull include predicting a first beam path of the ultrasound waves traversing the skull based at least in part on the target location; computationally determining structural characteristics of the skull along the first beam path based on the acquired imaging data; and predicting a second beam path of the ultrasound waves traversing the skull based at least in part on the determined structural characteristics, thereby accounting for refraction resulting from the skull.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: September 8, 2020
    Assignee: INSIGHTEC, LTD.
    Inventors: Shuki Vitek, Yoav Levy
  • Patent number: 10724998
    Abstract: A method and system for inspecting a rail profile include using ultrasonic phased arrays. Determined anomalies, such as material flaws like volumetric defects and cracks, in a fluid-immersed rail profile are detected by employing one or more phased array probes located proximate the rail profile. Electronic delays and beam steering and focusing can be employed to tailor the inspection to the rail geometry.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: July 28, 2020
    Assignee: GE GLOBAL SOURCING LLC
    Inventors: Sebastian Standop, Prashanth Kumar Chinta, Guenter Fuchs, Stephan Falter
  • Patent number: 10712317
    Abstract: The present disclosure relates to an apparatus for detecting a defect and a method for detecting a defect using the same, and more particularly, to an apparatus for detecting a defect and a method for detecting a defect using the same for detecting a defect inside an inspection object without destructing the inspection object. An apparatus for detecting a defect according to an embodiment of the present invention includes a first probe unit configured to transmit a signal into an inspection object and receive a signal generated inside the inspection object, a second probe unit separately installed from the first probe unit and configured to receive the signal generated inside the inspection object, and a position determining unit configured to detect a defect position inside the inspection object using the signal received by the first probe unit and the signal received by the second probe unit.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: July 14, 2020
    Inventors: Dong Hwan Shin, Ye Ji Shin, Seung Eun Cha
  • Patent number: 10634632
    Abstract: Systems and methods for non-destructive inspection (NDI) of target objects having non-planar surfaces (such as aircraft components having internal stiffeners). A robotic NDI platform is equipped with an NDI sensor and a laser-based alignment system. The laser-based alignment system is operated in a manner to acquire surface profile information in an area of interest on a non-planar surface of the target object. Then the acquired surface profile data is processed by a computer to generate a motion plan for automatically guiding the robotic NDI platform and the NDI sensor to the correct locations, where images of the area of interest may be captured.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: April 28, 2020
    Assignee: The Boeing Company
    Inventors: James J. Troy, Scott W. Lea, Gary E. Georgeson, Daniel James Wright
  • Patent number: 10620163
    Abstract: A method for detecting a defect of a metal plate includes selecting N controllable emitting electromagnetic acoustic transducers EMATs as excitation transducers, and selecting M omnidirectionally receiving EMATs as receiving transducers, exciting an ultrasonic guided wave in a metal plate by a nth controllable emitting EMAT with a predetermined emission angle; determining whether each of M1 omnidirectionally receiving EMATs and the nth controllable emitting EMAT form a scattering group; for the scattering group, solving a position of a scattering point and a direction of a scattering side according to a distance between Tn and Rml, the emission angle and a travel time of the ultrasonic guided wave; performing a curve fitting on all the scattering points in directions of respective scattering sides to obtain a contour image of the defect.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: April 14, 2020
    Assignees: HUBEI UNIVERSITY OF TECHNOLOGY, TSINGHUA UNIVERSITY, CHINA SPECIAL EQUIPMENT INSPECTION AND RESEARCH INSTITUTE, EDDYSUN (XIAMEN) ELECTRONIC CO., LTD., HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Songling Huang, Xiaochun Song, Gongtian Shen, Wei Zhao, Junming Lin, Yihua Kang, Yu Zhang, Shen Wang
  • 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