Having Unitary Sonic Type Transmitter-receiver Transducer Patents (Class 73/629)
  • Patent number: 11022584
    Abstract: A method and an apparatus for scanning a test object are introduced. A reference object is scanned to build a gain correction map including gain values for scanning points on a surface of the reference object. The test object is also scanned to obtain measurements for scanning points on a surface of the test object. Amplitudes of the measurements obtained for the scanning points on the surface of the test object are normalized using the gain values of the gain correction map. The apparatus has a probe mounted on a mechanical scanner, and a controller controlling the scanning and normalizing operations. The method and apparatus can be used to create an image of the test object for non-destructive testing.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: June 1, 2021
    Assignee: TECSCAN SYSTEMS INC.
    Inventors: Nicolas Grimard, Rene Sicard, Sam H. Serhan
  • Patent number: 10905401
    Abstract: Ultrasound imaging systems and methods with frequency (spectral) compounding for speckle reduction are disclosed. In one aspect, an ultrasound imaging system includes a transducer probe with interleaved transmit and receive arrays. The system may utilize ultrasound pulses having an optimized time-bandwidth product. In one aspect, a transducer probe with separate transmit and receive elements can enable transmission and reception of multiple ultrasound pulses, each centered at a different frequency, during the time of one A-scan. Thus, such a system can capture multiple independent speckle images without reducing overall B-mode framerate. In another aspect, the system may transmit a broadband pulse and may obtain separate speckle images by filtering the received echo using multiple spectral filters. The system may compound multiple images captured at different frequencies to provide speckle reduction.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: February 2, 2021
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Yilei Li, Steven Chu
  • Patent number: 10702241
    Abstract: A portable ultrasonic diagnostic device according to the present invention comprises: a measurement depth setting unit for setting the measurement depth intended to be measured; a voltage supply unit for supplying the voltage to be applied to a pulse generation unit depending on the set measurement depth, wherein the smaller the set measurement depth, the smaller the voltage supplied; and a pulse generation unit for generating the electrical pulse to be applied to an ultrasonic transducer in order to generate ultrasonic wave, wherein the generated electrical pulse is an electrical pulse of a voltage corresponding to the voltage supplied from the voltage supply unit.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: July 7, 2020
    Assignee: HEALCERION CO., LTD.
    Inventors: Jeong Won Ryu, You Chan Choung, Wook Jin Chung
  • Patent number: 10620162
    Abstract: Methods and systems for ultrasonic inspection are presented. For instance, a thin object or an object including a thin coating may be inspected. An ultrasonic signal is transmitted to the object. The dimension of the feature of the object is about one to ten wavelengths of the ultrasonic signal. An ultrasonic signal is received from the object, and includes reflections received from a back surface of the object or coating. The ultrasonic signal is processed by auto-correlating the received ultrasonic signal. The dimension of the object is measured from the processed ultrasonic signal. In one example, the received ultrasonic signal includes reflections from the object, and correlating provides a measure of the periodicity of the reflections in determining the processed ultrasonic signal. In another example, an autocorrelation is used to provide an estimate of the ultrasonic probe response which is used to improve the signal to noise ratio of additional signals received from that probe.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: April 14, 2020
    Assignee: Baker Hughes, a GE Company, LLC
    Inventor: Bruce Falco Karaffa
  • Patent number: 10605640
    Abstract: An apparatus and method for real-time visualization of particulate matter suspended in a static or flowing fluid and fluid flow patterns in a pipe, tube, conduit, or other container, are described. Ultrasonic scanning and detection of scattered sound from the particles in the fluid create a real-time image of the particles, or of flow patterns in the liquid. A mechanical wobbler directs a piezoelectric transducer over a chosen angle in an oscillatory manner. The transducer is operated in a pulse-echo mode wherein the same transducer detects the return signal from the target region through which particles are passing and/or a flow is present. The pulse-echo measurements are made rapidly and continuously during a single sweep of the transducer over the chosen angle. Received signals are processed in the ultrasound scanner electronics module and displayed as an image in real-time.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: March 31, 2020
    Assignee: Triad National Security, LLC
    Inventors: Dipen N. Sinha, Curtis F. Osterhoudt, Cristian Pantea
  • Patent number: 10557832
    Abstract: An apparatus for in-situ monitoring of a welded joint in a workpiece includes an ultrasonic sending transducer and a receiving transducer. The ultrasonic sending transducer includes a probe head disposed on a plurality of individually-activatable piezoelectric elements, and a plurality of waveguide probes projecting orthogonally from a planar surface. A wave attenuator is disposed between individual ones of the waveguide probes. A receiving transducer is disposed therein. The workpiece is insertable between the waveguide probes of the ultrasonic sending transducer and the receiving transducer. The ultrasonic sending transducer urges the probe head towards the receiving transducer such that the waveguide probes physically contact the welded joint in the workpiece. The piezoelectric elements individually excite the waveguide probe that is in physical contact with the welded joint in the workpiece. The acoustic receiving transducer is disposed to monitor the welded joint in the workpiece.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: February 11, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Megan E. McGovern, Wayne Cai, Jeffrey A. Abell
  • Patent number: 10502714
    Abstract: An electro-magnetic acoustic transducer (EMAT) generates both Lamb waves and shear horizontal (SH) waves or Lamb waves only. In configurations, the EMAT includes first and second coils shifted in alignment relative to one another and a magnet array overlaid over the coils. The EMAT generates a Lamb wave when the first coil is excited with an electrical current and generates a SH wave when the second coil is excited with an electrical current. In other configurations, the EMAT includes a coil and a magnet array which are movable relative to one another between a first position and a second position shifted in alignment relative to one another. The EMAT generates a Lamb wave when the coil is excited with an electrical current while in the first position and generates a SH wave when the coil is excited with an electrical current while in the second position.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: December 10, 2019
    Assignee: ULC Robotics, Inc.
    Inventors: Baiyang Ren, Junjun Xin
  • Patent number: 10495609
    Abstract: An ultrasonic inspection technique may be used to inspect quality of a bond between thermal protection system (TPS) material and a composite. The technique may include a highly damped transducer emitting an incident wave, which may traverse through thermal protection system (TPS) material and to a back wall of a composite. The incident wave may be of a low frequency signal, and may return a bondline echo and a backwall echo. The bondline echo is returned when the incident wave reaches a bondline and the backwall echo is returned when the incident wave reaches the backwall of the composite. The bondline echo and the backwall echo may be used to generate a waveform to assess the bond quality, revealing possible unbonds or kissing unbonds.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: December 3, 2019
    Assignee: The Aerospace Corporation
    Inventors: Yong Min Kim, Joseph T Case, Shant Kenderian
  • Patent number: 10338036
    Abstract: An apparatus for scanning a test object scans a reference object to build a gain correction map including gain values for scanning points on a surface of the reference object. The test object is also scanned to obtain measurements for scanning points on a surface of the test object. Amplitudes of the measurements obtained for the scanning points on the surface of the test object are normalized using the gain values of the gain correction map. The apparatus has a probe mounted on a mechanical scanner, and a controller controlling the scanning and normalizing operations. The apparatus can be used to create an image of the test object for non-destructive testing.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: July 2, 2019
    Assignee: TECSCAN SYSTEMS INC.
    Inventors: Nicolas Grimard, Rene Sicard, Sam H. Serhan
  • Patent number: 9880133
    Abstract: A system for determining a material property is disclosed. In some embodiments, a method for determining a material property comprises receiving a set of material responses corresponding to a set of ultrasonic excitations. The set of material responses are determined using measurements to determine a peak response for each of the set of ultrasonic excitations. In some embodiments, a device for making non-destructive in-situ measurements of the elastic yield strength of a sample (e.g., a steel plate or pipeline wall) is disclosed. The device determines the yield strength of a specimen based on transducing ultrasonic waves within the medium and correlating quantifiable characteristics of the resulting frequency response to the intrinsic elastic nonlinearity of the material. In various embodiments, the device includes one or more electrodes, an acoustic termination, a horn, a flange, a collar, power electronics, signal processors, a memory, a user interface, or any other appropriate device component.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: January 30, 2018
    Assignee: Atlas Sensors, LLC
    Inventor: Philip J. Stephanou
  • Patent number: 9751108
    Abstract: An ultrasonic transducer. The ultrasonic transducer has an interposer having electrical connectivity contacts. The ultrasonic transducer also has an ultrasonic receiver, comprising an array of receiving elements, physically fixed relative to the interposer and coupled to electrically communicate with electrical connectivity contacts of the interposer. The ultrasonic transducer also has at least one ultrasonic transmitter, separate from the ultrasonic receiver, physically fixed relative to the interposer and coupled to electrically communicate with electrical connectivity contacts of the interposer.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: September 5, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Wei-Yan Shih, Xiaochen Xu
  • Patent number: 9642572
    Abstract: Systems, apparatus, and method of monitoring a position of a joint. An inertial monitoring unit is configured to be coupled to a portion of a patient, such as a thigh. Another inertial monitoring unit is configured to be attached to another portion of the patient, such as a shank, that is connected to the other portion by a joint, such as a knee. The inertial monitoring units detect motion of their respective portions of the patient and transmit data indicative of this motion. These transmissions may be received by a computer and used to determine an orientation of the joint. The inertial monitoring units may also be coupled to vibration detection units and/or ultrasound modules that provide additional data regarding a condition of the joint.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 9, 2017
    Assignee: Joint Vue, LLC
    Inventors: Mohamed R. Mahfouz, Gary To
  • Patent number: 9409275
    Abstract: A method of removing unwanted material from an article having a variable form can include scanning the article and determining, based on the scanning, a location of the unwanted material, determining tool paths of a cutting tool which will result in removal of the unwanted material, and displacing the cutting tool along the tool paths, thereby removing the unwanted material. A material removal system for removing unwanted material from an oilfield drill bit can include a rotary indexing device which rotates the drill bit about a longitudinal axis of the drill bit, a scanning device which scans an outer surface of the drill bit, and a controller which determines a geometry of the drill bit, based on at least one scan by the scanning device, determines a location of the unwanted material, and determines tool paths of a cutting tool for removal of the unwanted material.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: August 9, 2016
    Assignees: Halliburton Energy Services, Inc., Design & Assembly Concepts, Inc.
    Inventors: Clayton A. Ownby, David W. Darling, Mark E. Ganninger, Philip Courtois
  • Patent number: 9354300
    Abstract: An ultrasound diagnostic apparatus includes a region-of-interest setting unit for setting a region of interest in a given region of a B mode image, a controller for controlling a transmission circuit and a reception circuit to transmit ultrasonic beams composed of fundamental waves having a first frequency with forming transmission focuses at a plurality of points set in and near the region of interest and receive ultrasonic echoes having a second frequency, which is a harmonic component of the fundamental waves, thereby to obtain reception data for measuring a sound speed, and a sound speed calculator for calculating ambient sound speeds at the points based on the obtained reception data for measuring a sound speed.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: May 31, 2016
    Assignee: FUJIFILM Corporation
    Inventor: Yukiya Miyachi
  • Patent number: 9232932
    Abstract: There are provided embodiments for providing a motion mode image corresponding to a motion of a target object. In one embodiment, by way of non-limiting example, an ultrasound system comprises: a user input unit configured to receive input information for setting a region of interest on a brightness mode image; and a processing unit configured to form the brightness mode image based on first ultrasound data corresponding to a target object and form vector information of the target object based on second ultrasound data corresponding to the target object, the processing unit being further configured to form a motion mode image including at least one of a brightness motion mode image and a color motion mode image based on the first ultrasound data and the vector information corresponding to the region of interest.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: January 12, 2016
    Assignee: SAMSUNG MEDISON CO., LTD.
    Inventors: Min Woo Kim, Woo Hyun Kang
  • Patent number: 9217729
    Abstract: An ultrasonic transducer holder with a floating head is disclosed. This transducer holder allows the waterpath of the ultrasonic signal to be maintained over a contoured surface. Maintaining a constant waterpath between a transducer and the piece being inspected allows for inspection of surfaces that normally would not be capable of inspection by prior ultrasonic transducer holders.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: December 22, 2015
    Assignee: United Technologies Corporation
    Inventor: Karl M. Gruca
  • Patent number: 9140672
    Abstract: A calibration block and method for sensitivity calibration. The calibration block has a curved calibration surface having a central axis and a surface for coupling to a transducer element of an angular scanning phased array ultrasonic testing scanner. The block is configured such that the surface positions the transducer such that its scanning axis is coaxial with the central axis of the curved calibration surface.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: September 22, 2015
    Assignee: AIRBUS OPERATIONS LIMITED
    Inventor: Terence Jones
  • Patent number: 9063069
    Abstract: An ultrasound measurement system and a method for carrying out ultrasound measurements is provided that includes a data acquisition unit and a transducer for coupling an ultrasound pulse into a connecting element and for extracting an ultrasound pulse echo from the connecting element. The ultrasound measurement system proposed according to the invention comprises the data acquisition unit which has a combination of analog and digital electronics for excitation and driving of the transducer. This is separated from a data processing unit and is in contact therewith via a wired or wireless connection.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: June 23, 2015
    Assignee: AMG Intellifast GmbH
    Inventor: Manfred Stickel
  • Publication number: 20150143910
    Abstract: A transmitter circuit and method for an ultrasonic thickness measurement system having an ultrasonic transducer and a cable with known cable impedance, the cable connecting at least the transmitter circuit to the ultrasonic transducer, the transmitter circuit comprising: an electrical pulse voltage signal emitter for producing an electrical pulse voltage signal to be propagated over the cable to the ultrasonic transducer, the electrical pulse voltage signal having a pulse nominal voltage value; a matched impedance circuit for matching a cable impedance of the cable at the transmitter circuit for an electrical parasitic reflection signal of the electrical pulse voltage signal, the electrical parasitic reflection signal being caused by an impedance mismatch between the cable and the ultrasonic transducer, a parasitic nominal voltage value of the electrical parasitic reflection signal being at most the pulse nominal voltage value.
    Type: Application
    Filed: July 23, 2013
    Publication date: May 28, 2015
    Applicant: EDDYFI NDT INC.
    Inventors: Florian Hardy, Eric Morissette
  • Patent number: 9032802
    Abstract: A phased array system and the inspection method which is configured to inspect the weld seam of an HSAW for all standard types of flaws located both near pipe's internal and external surfaces in one scan pass, diminishing the need of making mechanical adjustment for the probes during the one pass of scan. The configuration includes the usage of at least one linear PA probe for Lamination inspection right above HAZ zone, at least one pair of PA probes for longitudinal defects inspection and holes detection and at least two pairs of PA probes for transversal defect inspections.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: May 19, 2015
    Assignee: OLYMPUS NDT
    Inventors: Christophe Imbert, Jinchi Zhang, Benoit Lepage
  • Patent number: 9016130
    Abstract: A method comprises positioning an ultrasonic probe against a surface of an item. The probe includes a chamber formed in part by a flexible membrane, which is opposite the surface. The method further comprises moving the probe along the surface while varying chamber pressure to flex the membrane to accommodate the surface.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: April 28, 2015
    Assignee: The Boeing Company
    Inventors: Barry A. Fetzer, James C. Kennedy, Thomas E. Riechers
  • Publication number: 20150068311
    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: Application
    Filed: September 11, 2014
    Publication date: March 12, 2015
    Applicant: 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
  • Publication number: 20150020594
    Abstract: A determination assist system including a first image generating section for generating a first planar image based on data of a first test index; a second image generating section for generating a second planar image based on data of a second test index; a differentiation section which differentiates the first planar image and the second planar image to generate a first differential image and a second differential image, respectively; a binarization section which binarizes the first differential image to generate a first binary image including a first region which is not less than a first threshold and a second region, which is less than the first threshold, and binarizes the second differential image to generate a second binary image including a third region which is not less than a second threshold and a fourth region which is less than the second threshold; and a determination image generating section.
    Type: Application
    Filed: October 10, 2014
    Publication date: January 22, 2015
    Inventors: Kenji TSUBAKI, Katsumi NAGATA, Toshihiro YAMAOKA, Hideyuki HIRASAWA, Hironori OKAUCHI
  • Publication number: 20140305220
    Abstract: A method and apparatus is presented. A signal may be sent into a structure at an incidence angle from a transducer array. A response signal reflected from the structure in response to the signal sent into the structure may be detected at the transducer array to form a received response.
    Type: Application
    Filed: April 11, 2013
    Publication date: October 16, 2014
    Applicant: THE BOEING COMPANY
    Inventor: The Boeing Company
  • Patent number: 8806949
    Abstract: An electromagnetic ultrasound transducer is disclosed for receiving linearly polarized horizontal shear waves from an electrically conductive workpiece including a magnetizing unit, which provides a side facing the workpiece, along which a number n of permanent magnets are attached in at least two rows arranged next to one another in such a manner that the magnetic polarities of the magnetic poles which face the side alternate along a row periodically with a period length which corresponds to a trace wavelength ?s and a HF coil arrangement with conductor sections in at least two rows running parallel to one another, through which current can pass in mutually opposite directions.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: August 19, 2014
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventor: Frank Niese
  • Patent number: 8714018
    Abstract: The non-destructive testing of a test object by way of ultrasound includes: (a) radiating directed ultrasonic pulses into the test object at an irradiation angle ? wherein the irradiation angle ? is set electronically, (b) recording echo signals that result from the ultrasonic pulses radiated into the test object, and (c) determining an irradiation position X0 in which echo signals can be recorded that can be associated with an error in the volume of the test object. The method also includes (d) determining the irradiation angle ?max for which the ERS value of the error reaches its maximum at position X0, (e) changing the irradiation position X0?X1 on the surface of the test object, the change of the irradiation position being captured, and (f) electronically adjusting the irradiation angle ? in such a manner that the ERS value of the error reaches its maximum in the changed irradiation position X1.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: May 6, 2014
    Assignee: GE Sensing & Inspection Technologies GmbH
    Inventors: York Oberdoerfer, Wolf-Dietrich Kleinert
  • Publication number: 20140116144
    Abstract: A method comprises positioning an ultrasonic probe against a surface of an item. The probe includes a chamber formed in part by a flexible membrane, which is opposite the surface. The method further comprises moving the probe along the surface while varying chamber pressure to flex the membrane to accommodate the surface.
    Type: Application
    Filed: January 6, 2014
    Publication date: May 1, 2014
    Applicant: THE BOEING COMPANY
    Inventors: Barry A. Fetzer, James C. Kennedy, Thomas E. Riechers
  • Publication number: 20140083193
    Abstract: A transducer main body has, on a front end side thereof, an oscillating plane having a bent shape in a side view and corresponding to a larger-diameter curved surface formed at a bend of a laminated part. Over the oscillating plane of the transducer main body, a plurality of piezoelectric oscillators are distributed in a matrix in a bent direction and a width direction. In each oscillator group, a controlling unit 5 switches the piezoelectric oscillators to transmission and reception piezoelectric oscillators by turns in the width direction according to a preset transmission/reception pattern and processes a received signal from the reception piezoelectric oscillator according to an aperture synthesis method.
    Type: Application
    Filed: November 29, 2013
    Publication date: March 27, 2014
    Applicant: IHI Corporation
    Inventors: Koichi INAGAKI, Mamoru Izumi, Hirokazu Karasawa
  • Publication number: 20140083194
    Abstract: The invention relates to a device for determining properties of a medium, having a carrier (2) which can be brought into contact with the medium (3); at least one transmitter (4), arranged on the carrier (2), for exciting acoustic waves (A) in the carrier (2); at least one receiver (5), arranged on the carrier (2), for receiving acoustic waves (A, A?) which originate from waves (A) excited in the carrier (2) by means of the transmitter (4); a first material region (61) arranged on the carrier (4); and a second material region (62) arranged on the carrier (4), wherein the name of the second material region (62) is such that it absorbs sound waves at the frequency of the acoustic waves (A) excited in the carrier (2) more strongly than the first material region (61). The invention also relates to a method for producing such a device.
    Type: Application
    Filed: May 18, 2012
    Publication date: March 27, 2014
    Applicant: SENSACTION AG
    Inventors: Hendrik Faustmann, Michael Muench
  • Publication number: 20130276540
    Abstract: An ultrasonic testing apparatus includes an ultrasonic probe disposed under an end portion of a pipe laid in the horizontal direction to face the pipe end portion. The probe transmits ultrasonic waves to the end portion of the pipe and receives the ultrasonic waves therefrom. A probe holder housing the probe includes a coupling medium reserver part which surrounds a space between the probe and the end portion of the pipe to contain a coupling medium W. The coupling medium reserver part includes a part body 21 into which the coupling medium is supplied; an annular bellows part, which is attached to the upper side of the part body to internally communicate with the part body, and an annular spacer 23 attached to the upper side of the bellows part, the upper surface of the annular spacer being a flat horizontal surface.
    Type: Application
    Filed: October 18, 2012
    Publication date: October 24, 2013
    Inventors: Kenji FUJIWARA, Hiroshi Kubota, Tomoyuki Obata, Masaki Yamano
  • Publication number: 20130233080
    Abstract: A system including a mechanism emitting successive acoustic waves in a medium, a mechanism receiving the successive acoustic waves after propagation thereof in the medium, configured to supply a reception signal based on the successive acoustic waves received, and a mechanism detecting and locating disturbance in the medium on the basis of the reception signal. The emitting mechanism is configured such that, amplitude and/or phase spectrum of each acoustic wave having, at a specific frequency at least, an amplitude, or phase, varying in the medium according to a specific spatial distribution of the amplitude, or phase, and the spatial distributions of the amplitude, or phase, of the successive acoustic waves are mutually different.
    Type: Application
    Filed: October 27, 2011
    Publication date: September 12, 2013
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENE ALT
    Inventor: Jean-Pierre Nikolovski
  • Publication number: 20130199297
    Abstract: A phased array system and the inspection method which is configured to inspect the weld seam of an HSAW for all standard types of flaws located both near pipe's internal and external surfaces in one scan pass, diminishing the need of making mechanical adjustment for the probes during the one pass of scan. The configuration includes the usage of at least one linear PA probe for Lamination inspection right above HAZ zone, at least one pair of PA probes for longitudinal defects inspection and holes detection and at least two pairs of PA probes for transversal defect inspections.
    Type: Application
    Filed: January 25, 2013
    Publication date: August 8, 2013
    Inventors: Christophe Imbert, Jinchi Zhang, Benoit Lepage
  • Patent number: 8499636
    Abstract: An ultrasonic diagnostic apparatus that performs high acoustic pressure and low acoustic pressure ultrasonic transmissions by switching at predetermined timing in the enhanced ultrasonography, and displays concurrently a replenishment image obtained through the low acoustic pressure transmission in real time like a moving picture, and a pre-flash image obtained through the low acoustic pressure transmission immediately before switching to the high acoustic pressure transmission like a still image to allow the operator to understand the structure at the level of capillaries. It is also possible to display a selected image obtained through the low acoustic pressure transmission at an arbitrary timing instead of the pre-flash image.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: August 6, 2013
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventor: Naohisa Kamiyama
  • Patent number: 8402830
    Abstract: A method for nondestructive testing of a test object by means of ultrasound, and a corresponding device, the method including radiating directed ultrasonic pulses into the test object 100 at an irradiation angle ?, whereby the irradiation angle ? is set electronically, recording of echo signals that result from the ultrasonic pulses radiated into the test object 100, determining an ERS value of an error 102 in the volume of the test object from echo signals, which can be associated with the error 102.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: March 26, 2013
    Assignee: GE Sensing & Inspection Technologies GmbH
    Inventors: Wolf-Dietrich Kleinert, York Oberdörfer
  • Patent number: 8371173
    Abstract: An ultrasonic probe deployment device in which an ultrasound-transmitting liquid forms the portion of the ultrasonic wave path in contact with the surface being inspected (i.e., the inspection surface). A seal constrains flow of the liquid, for example preventing the liquid from surging out and flooding the inspection surface. The seal is not rigid and conforms to variations in the shape and unevenness of the inspection surface, thus forming a seal (although possibly a leaky seal) around the liquid. The probe preferably is held in place to produce optimum ultrasonic focus on the area of interest. Use of encoders can facilitate the production of C-scan area maps of the material being inspected.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: February 12, 2013
    Assignee: Sandia Corporation
    Inventors: Joseph DiMambro, Dennis P. Roach, Kirk A. Rackow, Ciji L. Nelson, Cameron J. Dasch, David G. Moore
  • Publication number: 20130025372
    Abstract: A wheel servicing machine such as a wheel balancer includes an acoustic transducer configured to measure energy of one or more reflected acoustic waves after the waves have bounced off a material boundary surface such as a wheel assembly. In some embodiments, a return energy index signal representative of the measured energy is generated by a transducer and is further processed by a processor to control operations of the machine. The acoustic transducer also measures distance between the transducer and the wheel assembly surface in some embodiments. One or more values in a sample queue of acquired distance data may be flagged, or indexed, based on variation in the magnitude of the return energy signal. Methods of measuring wheel width using sonar measurement of both distance and reflected energy are also provided.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 31, 2013
    Inventors: Xin Ye, Matthew Weis, Rhonda White
  • Patent number: 8359925
    Abstract: A method is disclosed for inspecting a weld joining a first rotor disk made of nickel alloy and having an inner surface and an outer surface concentric with the rotor's longitudinal axis to a second rotor disk having an inner surface and an outer surface concentric with the rotor's longitudinal axis. The weld made of nickel alloy fills a radial gap between the rotor disks, and has a dissimilar microstructure to either of the rotor disks. The method includes forming at least one slot in the first rotor disk extending through either the inner surface or the outer surface of the first rotor disk terminating in the first rotor disk; and passing an inspection signal from the first slot to the weld to inspect the weld for defects.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: January 29, 2013
    Assignee: Alstom Technology Ltd.
    Inventors: Richard Brendon Scarlin, Andreas Pirscher, Maurus Herzog
  • Patent number: 8358126
    Abstract: A method of testing for defects in the bottom of an above ground storage tank, the tank bottom having a lip extending outwardly from the tank wall around the circumference of the tank. A special magnetostrictive sensor is designed to be placed on this lip. The sensor is placed over a strip of magnetostrictive material, which generally conforms in length and width to the bottom of the probe, with a couplant being applied between the strip and the lip surface. The sensor is then operated in pulse echo mode to receive signals from defects in the bottom of the tank. It is incrementally moved around the circumference of the tank.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: January 22, 2013
    Assignee: Southwest Research Institute
    Inventors: Glenn M Light, Alan R Puchot, Adam C Cobb, Erika C Laiche
  • Publication number: 20120279307
    Abstract: An ultrasonic testing method is provided. The ultrasonic method includes non-destructively testing a test object with an ultrasound generated by an ultrasound probe, continuously circulating a liquid coupling medium outside of the test probe before and/or during non-destructively testing the test object, branching a part of the liquid coupling medium off from the circulation, and feeding the branched liquid coupling medium to a coupling chamber arranged between the ultrasound probe and the test object.
    Type: Application
    Filed: October 4, 2010
    Publication date: November 8, 2012
    Inventors: Reinhard Prause, Christof Breidenbach
  • Patent number: 8210042
    Abstract: A spiral wound module assembly comprising: a permeate collection tube, at least one membrane envelope wound about the permeate collection tube, an outer module housing, and at least one acoustic transducer located adjacent to the permeate collection tube. Several embodiments are disclosed including a stand-alone probe adapted for insertion into the permeate collection tube. In several other embodiments, one or more transducers are secured to the inner surface of the permeate collection tube.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: July 3, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: William E. Mickols, Michael S. Koreltz, David J. Moll, Donald B. Streeter
  • Patent number: 8176788
    Abstract: An ultrasonic inspection apparatus may include a chamber partly filled with water from a first portion of the chamber to a water-line disposed apart from a second portion of the chamber, and at least one transducer disposed apart from the water-line. The at least one transducer may emit ultrasonic signals through a portion of a part being inspected towards the water-line. The water-line may reflect the ultrasonic signals emitted from the at least one transducer off the water-line, back through a portion of a part being inspected, and back to the at least one transducer. In such manner, one or more portions of a complex-shaped part may be inspected.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: May 15, 2012
    Assignee: The Boeing Company
    Inventors: William J. Tapia, Gary E. Georgeson, Michael D. Fogarty, David W. Anderson
  • Patent number: 8087298
    Abstract: An ultrasonic probe deployment device in which an ultrasound-transmitting liquid forms the portion of the ultrasonic wave path in contact with the surface being inspected (i.e., the inspection surface). A seal constrains flow of the liquid, for example preventing the liquid from surging out and flooding the inspection surface. The seal is not rigid and conforms to variations in the shape and unevenness of the inspection surface, thus forming a seal (although possibly a leaky seal) around the liquid. The probe preferably is held in place to produce optimum ultrasonic focus on the area of interest. Use of encoders can facilitate the production of C-scan area maps of the material being inspected.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: January 3, 2012
    Assignee: Sandia Corporation
    Inventors: Joseph DiMambro, Dennis P. Roach, Kirk A. Rackow, Ciji L. Nelson, Cameron J. Dasch, David G. Moore
  • Patent number: 8061205
    Abstract: An acoustic method and apparatus detects or characterizes a medium in a structure which may be a container, such as a pipeline for transportation of oil, gas, or hydrocarbon condensate. A pulse of broadband acoustic energy is emitted towards the structure by a first transducer. A return signal is generating by a second transducer from acoustic energy returned from the structure in response to the emission of acoustic energy. A return signal spectrum representing acoustic spectral components of the acoustic energy returned from the structure is derived from the return signal, and the medium is detected or characterized by applying a return signal processing medium detection or characterization algorithm to the return signal spectrum.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: November 22, 2011
    Assignee: Det Norske Veritas AS
    Inventors: Jostein Jacobsen, Åshild Bergh, Ståle Vilming
  • Patent number: 8001841
    Abstract: A method and apparatus for effecting ultrasonic flaw detection of an object processes an echo signal received from the object being tested in at least three signal channels, wherein the echo signal is scaled to different degrees along each channel to increase and extend the dynamic range of an associated A/D converter system, in a manner which dispenses with the need for using numerous analog high pass and low pass filters and a variable gain amplifier. This reduces complexity and avoids performance limitations. The digital to analog converters sample the differently scaled input signal and a selection circuit selects the output of the digital output obtained from that analog to digital converter which has the highest gain, but which has not overflowed. The digital outputs are seamlessly merged to produce an output that can be displayed as a scan display which shows the location of faults.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: August 23, 2011
    Assignee: Olympus NDT
    Inventor: Andrew Thomas
  • Patent number: 8001842
    Abstract: A method and apparatus for effecting ultrasonic flaw detection of an object processes an echo signal received from the object being tested in at least three signal channels, wherein the echo signal is scaled to different degrees along each channel to increase and extend the dynamic range of an associated A/D converter system, in a manner which dispenses with the need for using numerous analog high pass and low pass filters and a variable gain amplifier. This reduces complexity and avoids performance limitations. The digital to analog converters sample the differently scaled input signal and a selection circuit selects the output of the digital output obtained from that analog to digital converter which has the highest gain, but which has not overflowed. The digital outputs are seamlessly merged to produce an output that can be displayed as a scan display which shows the location of faults.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: August 23, 2011
    Assignee: Olympus NDT
    Inventor: Andrew Robert Thomas
  • Patent number: 7963166
    Abstract: A method and apparatus for effecting ultrasonic flaw detection of an object processes an echo signal received from the object being tested in at least three signal channels, wherein the echo signal is scaled to different degrees along each channel to increase and extend the dynamic range of an associated A/D converter system, in a manner which dispenses with the need for using numerous analog high pass and low pass filters and a variable gain amplifier. This reduces complexity and avoids performance limitations. The digital to analog converters sample the differently scaled input signal and a selection circuit selects the output of the digital output obtained from that analog to digital converter which has the highest gain, but which has not overflowed. The digital outputs are seamlessly merged to produce an output that can be displayed as a scan display which shows the location of faults.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: June 21, 2011
    Assignee: Olympus NDT
    Inventor: Andrew Robert Thomas
  • Patent number: 7954380
    Abstract: A method for conducting nondestructive internal inspection of a rotary drill bit used for drilling subterranean formations comprises communicating ultrasonic waves into a drill bit and detecting ultrasonic waves that are reflected by at least a portion of the drill bit. In some embodiments, the waves may be directed into the drill bit from within a longitudinal bore thereof. Reflected waves also may be detected from within the bore. The methods may be used to develop threshold acceptance criteria for classifying drill bits as acceptable or unacceptable to prevent catastrophic failures of drill bits during use. Systems and apparatuses are disclosed for conducting nondestructive ultrasonic inspection of a drill bit used for drilling subterranean formations. The systems and apparatuses may comprise an ultrasonic probe configured for insertion within an internal longitudinal bore of a drill bit. Drill bits are disclosed that are configured to facilitate nondestructive ultrasonic inspection thereof.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: June 7, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Jeffrey B. Lund, Nicholas J. Lyons, Eric C. Sullivan, Terry D. Watts
  • Patent number: 7930940
    Abstract: An ultrasonic transducer incorporated into an ultrasonic inspection apparatus for examining existence of defect in a sample dipped in water comprises a transducer main part having an oscillator which projects an ultrasonic wave to the sample, receives the reflected wave from the sample and outputs the received reflected wave as an echo signal, a transmitter substrate producing a drive pulse for emitting the ultrasonic wave to the oscillator, a receiver substrate for amplifying the echo signal, a housing for containing therein both substrates electrically connected, and connecting member for electrically connecting between a signal input/output terminal and the side of the oscillator in the transducer main part, wherein, when a maximum operational frequency of the ultrasonic wave emitted from the oscillator is referred to as fmax [MHz], the connecting member is set at a length of 100/fmax [cm] or less.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: April 26, 2011
    Assignee: Toray Engineering Co., Ltd.
    Inventors: Akira Onodera, Yasunori Aoyama
  • Patent number: 7891248
    Abstract: An apparatus for measuring wall thicknesses of objects, includes a coordinate measuring machine that has a probe holder and an object support. The coordinate measuring machine is configured to provide relative movement between the probe holder and the object support in three dimensions. The apparatus also includes an ultrasonic test probe which is held by the probe holder. The coordinate measuring machine brings the transducer of the ultrasonic test probe into contact with a position on a surface of an object at the object support so that the probe can measure an object wall thickness at the probe contact position.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: February 22, 2011
    Assignee: Rolls-Royce PLC
    Inventors: Gerald William Hough, Nicholas Barrington Orchard, Dean Samuel Robert Whiteside
  • Patent number: 7886603
    Abstract: An ultrasonic diagnostic apparatus that performs high acoustic pressure and low acoustic pressure ultrasonic transmissions by switching at predetermined timing in the enhanced ultrasonography, and displays concurrently a replenishment image obtained through the low acoustic pressure transmission in real time like a moving picture, and a pre-flash image obtained through the low acoustic pressure transmission immediately before switching to the high acoustic pressure transmission like a still image to allow the operator to understand the structure at the level of capillaries. It is also possible to display a selected image obtained through the low acoustic pressure transmission at an arbitrary timing instead of the pre-flash image.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: February 15, 2011
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventor: Naohisa Kamiyama