Apparatus For Measuring By Use Of Vibration Or Apparatus For Measuring Vibration (e.g., Acoustic Or Ultrasonic) Patents (Class 73/1.82)
  • Patent number: 11490925
    Abstract: A medical device for injecting fat while simultaneously allowing the injection site to be viewed with ultrasound. The device may comprise a handle with a front portion and a rear portion, a cannula having a cannula tip, extending from the front portion of the handle, and an ultrasound probe attached to the handle, the ultrasound probe comprising an ultrasound head. The ultrasound head is aligned with and spaced apart from the cannula tip, and remains so aligned during the injection process so that the injection area may be continuously viewed during the procedure.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: November 8, 2022
    Inventor: Mohammed A. Alsufyani
  • Patent number: 11435707
    Abstract: The proposed aircraft engine control system includes at least one servo-loop, and at least one state feedback control integrated into the servo-loop. The state feedback control includes a static compensator (M) and a state corrector loop (L) which are parametrized so as to decouple the states constituted by the operating parameters of the engine to be servo-controlled. The mono-variable regulators are then in turn parameterized so as to servo-control the operating parameters on the setpoints.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: September 6, 2022
    Inventors: Christophe Marc Alexandre Le Brun, Bogdan Cristian Liacu
  • Patent number: 11346817
    Abstract: The present invention discloses an apparatus and a method for evaluating properties of a temporary plugging agent based on acoustic emission, wherein the apparatus includes a fracturing machine, an acoustic emission sensor and an acoustic emission analyzer, wherein the fracturing machine is configured to load a sample when oil pressure is stable and remains unchanged in a fracture of the sample, a real fracturing condition being simulated for the sample, and oil being pumped in and a temporary plugging agent being placed into the fracture; the acoustic emission sensor is configured to detect an acoustic wave signal emitted by the sample when the fracturing machine loads the sample; and the acoustic emission analyzer is connected to the acoustic emission sensor and configured to determine that the temporary plugging agent is fractured when a fracture signal occurs in the acoustic wave signal.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: May 31, 2022
    Assignee: China University of Petroleum-Beijing
    Inventors: Guangqing Zhang, Xuejing Han
  • Patent number: 11275058
    Abstract: Disclosed herein is a calibration panel that models acoustic properties of defects in vehicle components made of composite materials. The calibration panel includes a body formed by additive manufacturing from a first digital material having an acoustic property selected to approximate an acoustic property of a composite material and an insert embedded within the body. The insert is formed of at least a second digital material having an acoustic property selected to approximate an acoustic property of a defect within the composite material. Also disclosed is a method for manufacturing vehicle components that are non-destructive evaluation (NDE)-compliant. The method includes receiving a proposed design of a component, manufacturing the calibration panel, and testing the calibration panel to determine if the insert is detectable using acoustic emission testing. The method also includes rejecting, in response to a not-detectable status of the insert, the proposed design of the component.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: March 15, 2022
    Assignee: The Boeing Company
    Inventor: Mahdi Ashrafi
  • Patent number: 11248951
    Abstract: A sensor device, including a sensor having a sound transducer to emit sonic waves and convert received sonic waves to electrical signals. A sensor evaluation unit carries out surrounding-area monitoring during a normal operation of the sensor, by evaluating electrical signals of the sound transducer. During a monitoring mode of the sensor, a monitoring unit of the sensor device measures an impedance of the sound transducer for different excitation frequencies of excitation signals produced with a signal generator of the sensor device. The sensor device includes a first and a second signal path, which are each connected to the sound transducer and are connectable to the signal generator. To reset the sensor from normal operation to the monitoring mode, a first control unit of the sensor device is configured to decouple the signal generator from the first signal path and to connect it to the second signal path.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: February 15, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Dirk Schmid, Karl-Heinz Richter, Martin Reiche, Michael Frank, Peter Preissler
  • Patent number: 11169288
    Abstract: Machine-learning methods and apparatus are disclosed to determine frictional state or other parameters in an earthquake zone or other failing medium, using acoustic emission, seismic waves, or other detectable indicators of microscopic processes. Predictions of future failures are demonstrated in different regimes. A classifier is trained using time series of acoustic emission data along with historic data of frictional state or failure events. In disclosed examples, random forests and gradient boost trees are used, and grid-search or EGO procedures are used for hyperparameter tuning. Once trained, the classifier can be applied to testing or live data in order to assess a frictional state, assess seismic hazard, or make predictions regarding a future failure event. The technology has been developed in a double direct shear apparatus, but can be widely applied to seismic faults, other terrestrial failures, or failures in man-made structures. Variations are disclosed.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: November 9, 2021
    Assignee: Triad National Security, LLC
    Inventors: Paul Allan Johnson, Claudia L. Hulbert, Bertrand Rouet-Leduc
  • Patent number: 11159888
    Abstract: Methods, systems, circuits and computer program products provide an output signal to drive an electromechanical transducer that selectively contains a cooling component when a thermal limit of a voice coil of the electromechanical transducer is exceeded and which air-cools the transducer by convection. An indication of a temperature of a voice coil of the electromechanical transducer is determined and compared with a thermal limit of the transducer. If the thermal limit of the transducer is exceeded by the indication of the temperature of the voice coil, the cooling component is introduced to the output signal that drives the transducer. The cooling component is a signal having a frequency within a low-frequency resonance portion of the response of the electromechanical transducer, so that additional air convection is caused at the transducer to remove heat from the voice coil due to the cooling component of the output signal.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: October 26, 2021
    Assignee: CIRRUS LOGIC, INC.
    Inventors: Ziyan Zou, Anthony S. Doy, Ning Li, Kaichow Lau, George E. Hardy, John L. Melanson
  • Patent number: 11157012
    Abstract: A system includes an inspection robot having a plurality of acoustic sensors coupleable to an inspection surface through a couplant chamber defining a delay line therebetween; the plurality of acoustic sensors configured to provide raw acoustic data; a controller, comprising: an acoustic data circuit structured to interpret the raw acoustic data; a thickness processing circuit structured to determine a primary mode value and a primary mode score value in response to the raw acoustic data; and wherein the thickness processing circuit is further structured to determine a thickness value in response to the primary mode value and the primary mode score value.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: October 26, 2021
    Assignee: Gecko Robotics, Inc.
    Inventors: Mark Loosararian, Joshua Moore, Yizhu Gu, Kevin Low, Edward Bryner, Logan MacKenzie, Ian Miller, Alvin Chou, Todd Joslin
  • Patent number: 11112387
    Abstract: A method and system is disclosed for measuring a wideband loop sensitivity SL(f) for an acoustic transducer in an acoustic probe. A pulse signal is employed as a wideband reference signal Vr(t); and, in a pulse-echo measurement a corresponding wideband echo signal Ve(t) is obtained. A normalized loop frequency response {circumflex over (X)}(f) for the acoustic transducer is defined as a ratio of a Fourier Transform of the Ve(t) to a Fourier Transform of the Vr(t). A wideband loop sensitivity SL(f) for the acoustic transducer is defined as an absolute square of the {circumflex over (X)}(f) in decibel.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: September 7, 2021
    Inventors: Ying-Wei Yuan, Jen-Chih Yao, Fu-Chieh Yang, Wen-Pin Lai
  • Patent number: 10942074
    Abstract: A method for monitoring the spindle preload amount of a spindle by: S1 obtaining a spindle preload amount through a PPC Preload Analyzer; and S2 obtaining an axial force sensor output of the spindle through an axial force sensor, wherein the axial force sensor output is calibrated using the spindle preload amount that is obtained through the PPC Preload Analyzer; establishing a relationship between the spindle preload amount and the axial force sensor output, then regarding the axial force sensor output as the spindle preload amount, and then monitoring the spindle preload amount by monitoring the axial force sensor output.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: March 9, 2021
    Assignee: Precision Machinery Research & Development Center
    Inventors: Tadao Tsuneyoshi, Peng-Jui Chen, Chi-Cheng Kuo, Tung-Yi Lu, Hsing-Chieh Huang
  • Patent number: 10900864
    Abstract: A method and system for accelerated fatigue damage testing of an object excited via an actor, wherein a drive signal is generated and transmitted to the actor, where the acceleration of the object or a mounting base of the actor is measured and supplied to a control system, where a Power Spectral Density (PSD) and a Fatigue Damage Spectrum FDS within the control system are calculated from the measured acceleration, whereby the calculated PSD is compared with a target PSD, whereby the calculated Fatigue Damage Spectrum FDS is compared with a target FDS, whereby a new drive frequency spectrum is calculated based on the comparisons and, one or multiple time domain blocks for the drive signal for a next cycle are generated from the new drive frequency spectrum and transmitted to the actor such that accelerated vibration testing without affecting the failure mode is achieved which provides realistic results.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: January 26, 2021
    Inventors: Bram Cornelis, Bart Peeters
  • Patent number: 10877092
    Abstract: A differential signal measurement system is provided. The differential signal measurement system includes a measurement device, with at least one differential signal input, a differential connection interface configured to connect the at least one differential signal input of the measurement device to a device under test, and a differential signal source, with at least one differential signal output, configured to generate at least one differential output signal. The differential connection interface is further configured to pass the at least one differential output signal to the at least one differential signal input of the measurement device, and the measurement device is configured to capture the at least one differential output signal.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: December 29, 2020
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventor: Martin Peschke
  • Patent number: 10775349
    Abstract: An automatic defect detection method for detecting a defect in an object comprises: obtaining ultrasound scan data of the object, dividing echo amplitude values of the data into a plurality of sub-sets; assessing each sub-set to determine whether any echo amplitude values resulted from a structure of interest; computing for each sub-set, using at least a representative position of the structure portion of the sub-set and of a neighboring sub-set, a preselected mathematical function which is directly or inversely proportional to a distance between the representative positions; identifying sub-sets having a computed value that does not meet a predetermined criterion as regions of the ultrasound scan data that require inspection; issuing a notification indicating whether or not a region requiring inspection has been found; and if a region requiring inspection been found, storing data identifying the region in a database.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: September 15, 2020
    Inventor: Eduarda Mendes Rodrigues
  • Patent number: 10766510
    Abstract: A system for performing ultrasonic inspection of a rail including a sensing wheel arranged to roll along the top of the rail, and a plurality of ultrasonic transducers in the sensing wheel. The sensing wheel is aligned perpendicular to a vertical plane extending from the rail, detecting horizontal defects in a head area of the rail. The ultrasonic rail inspection system is designed to detect and classify horizontal defects in the head of the rail which will propagate in the longitudinal direction that will eventually result in defects component that will propagate in the transverse plane of the rail head area. The capability of detecting and classification of this type of defect will enable compliance to the FRA subpart 213.113 Defective rails specification, that is currently not being met by the existing technology.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: September 8, 2020
    Inventor: Dominick A. Pagano
  • Patent number: 10746900
    Abstract: The ability to match multiple runs of inspection data to each other allows assets to be managed. Assets, such as defects in pipelines can be tracked across multiple inspection runs. The matching of defects allows the growth of defects in the pipeline to be tracked. The pipeline data system allows tracking of different assets including pipeline components, as well as managing documents including dig site reports.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: August 18, 2020
    Inventors: Darren Anthony Gerling, Jason Wayne Gerling
  • Patent number: 10502717
    Abstract: A method and system is disclosed for measuring a wideband loop sensitivity SL(f) for an acoustic transducer in an acoustic probe. A pulse signal is employed as a wideband reference signal Vr(t); and, in a pulse-echo measurement a corresponding wideband echo signal Ve(t) is obtained. A normalized loop frequency response {circumflex over (X)}(f) for the acoustic transducer is defined as a ratio of a Fourier Transform of the Ve(t) to a Fourier Transform of the Vr(t). A wideband loop sensitivity SL(f) for the acoustic transducer is defined as an absolute square of the {circumflex over (X)}(f) in decibel.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: December 10, 2019
    Inventors: Ying-Wei Yuan, Jen-Chih Yao, Fu-Chieh Yang, Wen-Pin Lai
  • Patent number: 10378928
    Abstract: A system and method for dynamically calibrating a distributed fiber optic sensing system is disclosed. The calibration system includes a light source for generating pulses of coherent light, an optical fiber arranged at least partly in a ground soil region to guide the light and a photo detector for detecting scattered light returning from the optical fiber in dependence of time. The method includes obtaining information from which a temporal change of an acoustic transfer characteristic of the ground soil region is derivable and calibrating a distributed acoustic sensing system based on the changed acoustic transfer characteristic.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: August 13, 2019
    Inventors: Wissem Sfar Zaoui, Clemens Pohl
  • Patent number: 10345273
    Abstract: Methods and apparatus verify operation of acoustic emission sensors are disclosed. A disclosed example apparatus includes an acoustic source acoustically coupled to a device, where the acoustic source is to generate an acoustic signal, and a processor to determine an operational condition of an acoustic emission sensor associated with the device based on measuring the generated acoustic signal at the acoustic emission sensor.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: July 9, 2019
    Assignee: Fisher Controls International LLC
    Inventors: Richard Allen Nordstrom, Bret Anthony Dahme, Shannon Eugene Jelken
  • Patent number: 10260035
    Abstract: Provided is a cell stimulating system including an oscillator, in an ultrasound probe array type, including a plurality of ultrasound devices disposed in a matrix structure, the oscillator being produced using a micro electro mechanical system (MEMS), a plurality of cell containers configured to each contain a cell that is selectively stimulated by the ultrasound devices, the cell containers being disposed on a top of the oscillator to correspond to each of the ultrasound devices, and a device operator configured to operate an ultrasound device selected from among the ultrasound devices.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: April 16, 2019
    Assignee: Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Hong Soo Choi, Won Jun Lee, Joon Taek Jung
  • Patent number: 10219768
    Abstract: Systems and methods for standardizing target lesion selection within cross-sectional medical images can include the acts of: (i) sending a plurality of cross-sectional images to a user device, where each cross-sectional image is a cross-sectional slice of digital medical image data captured at a first timepoint from a radiologic device; (ii) receiving a user input identifying a set of pixels corresponding to a target lesion within a cross-sectional image of the plurality of cross-sectional images; and (iii) generating a target lesion location file that includes a precise anatomical location of the cross-sectional image and a pixel location of the target lesion within the cross-sectional image. The systems and methods can additionally include the act of causing a digital marker to be displayed on the cross-sectional image and on each analogous cross-sectional image captured at a later timepoint.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: March 5, 2019
    Assignee: EMASS LLC
    Inventor: Andrew Dennis Smith
  • Patent number: 10139222
    Abstract: A method for measuring a wall thickness in hollow valves may include determining a wall thickness in a region of a valve stem using at least one ultrasonic sensor, wherein the one ultrasonic sensor may be oriented with respect to a surface on the valve stem in such a manner that an emitted ultrasound may be introduced into the surface in a perpendicular manner. The method may additionally or alternatively include determining a wall thickness in a region of a chamfer using the at least one ultrasonic sensor, wherein the at least one ultrasonic sensor may be positioned at a location on the chamfer at which an inner tangent in a cavity runs parallel to an outer tangent on the chamfer, and wherein the ultrasonic sensor is oriented with respect to the tangents in such a manner that an emitted ultrasound is introduced into the surface in a perpendicular manner.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: November 27, 2018
    Assignee: Mahle International GmbH
    Inventors: Peter Kroos, Christoph Luven, Holger Schnell, Thomas Strelow, Richard Wlassa
  • Patent number: 10079866
    Abstract: In one embodiment, a conferencing device detects a potential echo effect between two or more of a plurality of participant devices in an online conference the two or more participant devices being co-located. The conferencing device presents an echo warning to a user interface of a particular one of the co-located participant devices, in response to detecting the potential echo effect. The conferencing device groups the co-located participant devices into a group. The conferencing device provides audio data from a selected one of the co-located participant devices in the group for presentation by the plurality of participant devices as part of the online conference.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: September 18, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: Jianbin Fang, Mingfeng Yang, Yasi Xi
  • Patent number: 10044555
    Abstract: A Multi-Homing System is equipped with an Adaptive JSP Access Cloud State Detection apparatus (ACSD) that improves the reliability of the availability of digital connections (links) between computer sites, such as a Computer Premises Network and the Internet, in which such connections are made by connecting through a multiplicity of ISP Access Clouds (links). Reliability is improved over prior art methods by using data elements of Internet Protocol datagrams, e.g. record fields or bits of fields, that are regularly and normally exchanged between the ISP Access Clouds and the CPN without creating additional data traffic. Data Elements from each ISP Access Cloud are used by processing functions of the by the ACSD to test for conditions that indicate that it may be in a DOWN status.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: August 7, 2018
    Assignee: ASPEN NETWORKS, INC.
    Inventors: Sajit Bhaskaran, Anmol Kumar, Prashanth Krishnamurthy
  • Patent number: 9935078
    Abstract: [Problem] To provide a bonding device in which a capillary can perform stable vibration from a low frequency to a high frequency while achieving lightening and downsizing of a load to be driven by a piezoelectric element and in which stable vibration can be transmitted to the capillary without disturbing operation of expansion and contraction of the piezoelectric element as keeping preliminary pressure to the capillary constant.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: April 3, 2018
    Inventor: Akio Sugito
  • Patent number: 9918696
    Abstract: Existing gas pocket detection approaches are based on visual observations of B-mode ultrasound images showing comparisons between normal soft tissue and gas pockets, which are time-consuming and dependent on operator experience. The present invention proposes an ultrasound system and a method of detecting a gas pocket. The ultrasound system comprises: an ultrasound probe (110) for transmitting an ultrasound signal toward the ROI and acquiring an ultrasound echo signal reflected from the ROI along a plurality of scanning lines; an obtaining unit (130) for obtaining a second harmonic component of the ultrasound echo signal for each depth of a plurality of depths along each scanning line of the plurality of scanning lines; and a deriving unit (140) for deriving a change in a center frequency of the second harmonic component along with the depth.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: March 20, 2018
    Inventors: Jingping Xu, Balasundar Iyyavu Raju, Sheng-Wen Huang, Shougang Wang, Emil George Radulescu, Shiwei Zhou
  • Patent number: 9887386
    Abstract: A display device includes: a flexible substrate; a display unit on the flexible substrate and configured to display an image; and a compensation layer between the flexible substrate and the display unit.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: February 6, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bo Ik Park, Ju Chan Park, Pil Suk Lee
  • Patent number: 9877704
    Abstract: An acoustic phantom of an embodiment is mainly made of a urethane gel produced by a reaction of a polyether polyol and an isocyanate compound. The urethane gel has a cross-linking index (CI) in the range of 1600 to 5000.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: January 30, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Ryo Ogawa
  • Patent number: 9707341
    Abstract: To detect air in a fluid delivery line of an infusion system, infusion fluid is pumped through a fluid delivery line adjacent to at least one sensor. A signal is transmitted and received using the at least one sensor into and from the fluid delivery line. The at least one sensor is operated, using at least one processor, at a modified frequency which is different than a resonant frequency of the at least one sensor to reduce an amplitude of an output of the signal transmitted from the at least one sensor to a level which is lower than a saturation level of the analog-to-digital converter to avoid over-saturating the analog-to-digital converter. The signal received by the at least one sensor is converted from analog to digital using an analog-to-digital converter. The at least one processor determines whether air is in the fluid delivery line based on the converted digital signal.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: July 18, 2017
    Assignee: ICU Medical, Inc.
    Inventors: John Hicks Dumas, III, Paul T. Kotnik, Kunal Sur, Anatoly S. Belkin, Timothy L. Ruchti
  • Patent number: 9671371
    Abstract: A technique facilitates anomaly recognition and tracking in a variety of components, such as tubular components. The technique comprises sensing for anomalies in the component, and storing detected anomalies in a storage medium. The detected anomalies are matched with stored digital descriptions of anomalies. The stored digital descriptions may be anomalies of similar types and/or anomalies detected on the specific component being tested. The detected anomalies are ranked according to similarities with respect to the stored digital descriptions.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: June 6, 2017
    Inventors: Zhanke Liu, Shunfeng Zheng, Mirjam Zwanenburg
  • Patent number: 9645047
    Abstract: A method wherein the possible abnormal noisiness and vibrations of a rolling bearing for a wheel hub unit are detected by fixing a first one of the inner and outer rings of the bearing integral on a support provided with a first and a second accelerometer so that the first and second accelerometers have respective measurement axes (X, Y) arranged at a right angle relative to each other on a plane perpendicular to the axis of symmetry (A) of the bearing. A second ring of the bearing is angularly coupled with means for rotating it at a predetermined speed, calculated beforehand based on operating parameters of the bearing; processing means detect in a predetermined time interval a first and a second electric signal (T1, T2) emitted by the first and second accelerometers and, through a frequency analysis, obtain a frequency spectrum (P) of the amplitude of any vibrations detected.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: May 9, 2017
    Inventors: Raffaele Montagnoni, Luca Volpato
  • Patent number: 9625424
    Abstract: Disclosed is phased array inspection system with automatically generated PAUT scan plan based on a set of configurable probe operation parameters and a combination of preferred code requirement and rules given by PAUT expertise. The complex code requirements and PAUT expertise are pre-assembled into a plurality of templates applicable to categories of inspection tasks by PAUT experts. Requirements and optimization scoring schemes are then used to automatically score each of specifically proposed scan plan setup, including the selection of probe operation parameters against the corresponding template for a specific task. This allows less skilled field inspector to operate with the correct interpretation of the complex code and accurate evaluation of the scan plan.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: April 18, 2017
    Inventors: Benoit LePage, Martin St-Laurent
  • Patent number: 9559788
    Abstract: An electromagnetic barrier includes a first surface and a second surface. A first transducer is coupled to the first surface. A second transducer is coupled to the second surface such that a signal is transmittable between the first transducer and the second transducer without physically penetrating the electromagnetic barrier.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: January 31, 2017
    Assignee: The Boeing Company
    Inventors: Daniel James Kovach, Gary E. Georgeson, Andrew M. Robb
  • Patent number: 9488716
    Abstract: Provided are methods and systems for calibrating a distributed sensor (e.g., microphone) array using time-of-flight (TOF) measurements for a plurality of spatially distributed acoustic events at the sensors. The calibration includes localization and gain equalization of the sensors. Accurate measurements of TOFs are obtained from spatially distributed acoustic events using a controlled signal emitted at known intervals by a moving acoustic source. A portable user device capable of playing out audio is used to produce a plurality of acoustic events (e.g., sound clicks) at known intervals of time and at different, but arbitrary locations based on the device being moved around in space by a user while producing the acoustic events. As such, the times of the acoustic event generation are known, and are spatially diverse. The calibration signals emitted by the acoustic source are designed to provide robustness to noise and reverberation.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: November 8, 2016
    Assignee: GOOGLE INC.
    Inventors: Nikolay D. Gaubitch, Willem Bastiaan Kleijn, Richard Heusdens
  • Patent number: 9423240
    Abstract: A laser processing system for accurate detection of how far away the surface of a workpiece may be includes a platform, a laser processing device, a distance detection device, and a driving device. The platform is configured for carrying at least one workpiece. Both the laser processing device and the distance detection device are arranged upon the platform. The distance detection device detects an actual distance between a surface of the workpiece and the laser processing device, and compares the preset height with the actual height. If the preset height is less than the actual height, the distance detection device emitting a warning signal to remind a worker to re-enter a new preset height.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: August 23, 2016
    Inventor: Chen-Han Lin
  • Patent number: 9392387
    Abstract: Methods and devices are disclosed for testing an acoustic probe having transducing elements for converting between acoustic and electrical signals. An electrical signal is generated at a frequency with a testing device capable of generating electrical signals over a range of frequencies. The electrical signal is transmitted to at least some of the transducing elements to measure a complex impedance and thereby evaluate a performance of the transducing elements.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: July 12, 2016
    Assignee: General Electric Company
    Inventors: James Ginther, John Timms, G. Wayne Moore, James Gessert
  • Patent number: 9117038
    Abstract: A system and method for determining optimal values for the geometrical features of an ultrasonic transducer having one or more elements, the method including backprojection ray-tracing to determine the parameters required for apertures located on an ultrasonic probe surface. The ultrasonic probe design system includes an interface for inputting statement parameters, insonification requirements, and geometric constraints, with an engine responsive to the interface and configured to determine and provide an optimized transducer geometric design output.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: August 25, 2015
    Inventor: Vincent Lupien
  • Publication number: 20150135799
    Abstract: A method of adjusting flaw detection sensitivity on an array ultrasonic probe comprises disposing a plate material P1 oppositely to the ultrasonic probe such that an upper surface of the plate material is disposed to be approximately parallel to an array direction of the transducers 11, or disposing a tubular material P2 oppositely to the ultrasonic probe such that an axial direction of the tubular material is disposed to be approximately parallel to the array direction of the transducers. Ultrasonic waves are transmitted from each transducer toward the upper surface of the plate material or an outer surface of the tubular material, and echoes are received from the bottom surface of the plate material or an inner surface of the tubular material on each transducer. Flaw detection sensitivity of each transducer is adjusted to substantially equalize intensity of an echo received on each transducer.
    Type: Application
    Filed: May 17, 2013
    Publication date: May 21, 2015
    Inventors: Masaki Yamano, Yoshiyuki Nakao, Shigetoshi Hyodo, Masaki Tanaka, Tsukasa Suda
  • Patent number: 9022938
    Abstract: An ultrasound diagnostic device includes a plurality of channels configured to receive data and a scan line data forming unit including a plurality of sub-scan line data forming groups and a data summing unit. The sub-scan line data forming group forms partial data of scan lines, and the data summing unit forms scan line data of the scan lines by summing the partial data. The sub-scan line data forming group includes a plurality of sub-scan line data forming units for forming the partial data of the scan lines by using the receiving data and providing a transmission path of the receiving data. First data lines transmit the receiving data between at least one of the sub-scan data forming unit and the channels, and second data lines transfer the receiving data between the sub-scan line data forming units.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: May 5, 2015
    Assignee: Madison Co., Ltd.
    Inventors: Moo Ho Bae, Jeong Ho Ham, Ra Young Yoon, Han Woo Lee
  • Publication number: 20150114083
    Abstract: A circuit for a physical quantity detection device includes a drive unit that generates a drive signal that causes an vibrator to vibrate, a detection unit that detects a detection signal outputted from the vibrator based on the drive signal, a passive filter which has a filter characteristic in which a cutoff frequency is lower than a detuning frequency and a cutoff frequency band contains a frequency band higher than the cutoff frequency and to which a signal from the detection unit is inputted, and an amplification unit that amplifies a signal from the passive filter.
    Type: Application
    Filed: October 28, 2014
    Publication date: April 30, 2015
    Inventors: Kiminori NAKAJIMA, Koji USHIYAMA, Takashi AOYAMA, Koji MIYASHITA
  • Patent number: 9016107
    Abstract: A method of calibrating a voltage for use with an ultrasonic transducer of a wire bonding machine in a constant voltage mode is provided. The method includes: (1) determining an impedance value associated with operation of the ultrasonic transducer; and (2) establishing an adjusted voltage level for use with the ultrasonic transducer in the constant voltage mode based on the determined impedance value.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: April 28, 2015
    Assignee: Kulicke & Soffa Industries, Inc.
    Inventors: Ivy Wei Qin, John D. Molnar, Thomas J. Colosimo, Jr.
  • Publication number: 20150101390
    Abstract: A method of calibrating ultrasound velocity is provided, including receiving an ultrasound non-delayed data set; performing a beam-forming process on the ultrasound non-delayed data set with a plurality of velocities to generate a plurality of aperture images; performing an MAE (Mean Absolute Error) process to obtain a velocity and two sub-aperture images corresponding to an MAE value located within an MAE range; finding a first sub-aperture and a second sub-aperture corresponding to the two sub-aperture images, generating a first aperture image and a second aperture image with corresponding velocity; performing the MAE process on the first aperture image and the second aperture image to generate an image error corresponding figure having an error curve; finding a trend curve according to the error curve; and finding a lowest point of MAE value on the trend curve and finding a velocity correspondingly to obtain the calibrated ultrasound velocity.
    Type: Application
    Filed: January 27, 2014
    Publication date: April 16, 2015
    Inventors: PAI-CHI LI, YU-MING WEI
  • Patent number: 9004862
    Abstract: A control system for calibrating a wind turbine sensor placed on a component of a wind turbine and related methods are disclosed. The wind turbine includes a rotor having at least one wind turbine blade. The method comprises pitching one or more of the at least one of the wind turbine blades according to a predetermined pitch movement which induces a vibratory motion in the at least one turbine blade. A wind turbine sensor measures a vibratory response signal at least partly caused by the vibratory motion. A characteristic sensor response value is determined from the vibratory response signal. The characteristic sensor response value may be compared to a predetermined sensor calibration parameter to determine whether a difference is greater than a predefined tolerance parameter. In this manner, the wind turbine sensor may be calibrated.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: April 14, 2015
    Assignee: Vestas Wind Systems A/S
    Inventor: Erik Carl Lehnskov Miranda
  • Patent number: 8997550
    Abstract: A method and system for correcting for temperature variation in ultrasonic testing systems is disclosed. In one embodiment, an offset is determined for correcting a time of flight measurement, wherein the offset is based on the pulse delays at first and second calibration temperatures. In another embodiment, a factor is determined for correcting a time of flight measurement, wherein the factor is based on clock signal errors at first and second calibration temperatures.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: April 7, 2015
    Assignee: General Electric Company
    Inventors: Nathan John Smith, Jeffrey Lee Dubler
  • Patent number: 8988969
    Abstract: Evaluating utilities involves generating an acoustic or seismic source signal, communicating the source signal to a first underground utility, moving a receiver through a second underground utility situated in proximity to the first utility, and monitoring for a cross bore involving the first and second utilities in response to receiving the source signal emanating from the first utility as the receiver progresses through the second utility. Utility evaluation may further involve detecting a cross bore involving the first and second utilities using monitoring data acquired by the receiver.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: March 24, 2015
    Assignee: Underground Imaging Technologies, Inc.
    Inventors: Mark Wallbom, Gary Young
  • Publication number: 20150059432
    Abstract: In a data acquisition instrument with dual A/D converters in each measurement channel, phase corrections between the paths are computed using a locally generated calibration signal. The calibration signal goes through dual paths simultaneously and is stitched into a single signal for analysis by a processor running a Fourier transform where phase differences are easily identified and used to establish a phase correction signal applied to a single master clock supplying clock signals to both paths. A switch allows the calibration signal to be applied to each channel or to no channels when actual data is being collected.
    Type: Application
    Filed: October 18, 2013
    Publication date: March 5, 2015
    Applicant: Crystal Instruments Corporation
    Inventors: James Q. Zhuge, Zhengge Tang, Lei Chen
  • Publication number: 20150033822
    Abstract: Systems and methods for detecting a contamination status of an ultrasonic sensor assembly included in a refrigeration appliance are provided. An exemplary refrigerator includes a sensor assembly. The sensor assembly includes a first ultrasonic sensor configured to transmit an ultrasonic signal and a second ultrasonic sensor configured to receive the ultrasonic signal. The refrigerator is configured to perform operations comprising detecting whether the sensor assembly is contaminated based on one or more characteristics of the received ultrasonic signal. An exemplary method includes monitoring a change in a characteristic of a plurality of crosstalk components of a plurality of ultrasonic signals of over a period of time to detect a contaminated state of an ultrasonic sensor.
    Type: Application
    Filed: August 1, 2013
    Publication date: February 5, 2015
    Applicant: General Electric Company
    Inventors: Jonathan Charles Crosby, Tyler James Doering, Joseph Thomas Waugh
  • Patent number: 8910370
    Abstract: A universal air bubble detector allows for use with a variety of sizes and types of tubing. The detector maintains proper alignment of a sensor emitter and receiver with different sizes of tubing. The detector may be mounted on existing equipment or may be used to monitor a tubing at any position along the tubing, and may operate in a stand alone mode or in combination with existing equipment.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: December 16, 2014
    Assignee: Zevex, Inc.
    Inventors: Timothy A. Riley, Mark D. Stringham, David H. Blaine, Frank A. Crandall, Philip N. Eggers
  • Publication number: 20140360246
    Abstract: A micro-electro-mechanical-system (MEMS) resonant sensor includes: a MEMS unit that generates an output signal corresponding to a vibration component of a mass body vibratable between a first driving electrode and a second driving electrode; an automatic gain control (AGC) unit that automatically generates a comparative voltage by controlling a gain of the output signal; and a bias unit that receives a reference voltage and generates a bias voltage using the comparative voltage and the reference voltage, wherein a sinusoidal driving voltage is applied to the first driving electrode and the second driving electrode, and the bias voltage is applied to the mass body. It can maintain the amplitude of the mass body stably in the MEMS resonant sensor, and prevent malfunction of an electronic circuit by reducing a response error of the MEMS resonant sensor.
    Type: Application
    Filed: November 27, 2013
    Publication date: December 11, 2014
    Applicant: Hyundai Motor Company
    Inventors: Soon-myung Kwon, Sang Gyu Park
  • Patent number: 8905624
    Abstract: A system and method for controlling a mixing system at a peak energy efficiency point, maximum response point or reduced sound generation point based on displacement, velocity, acceleration or jerk operating conditions.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: December 9, 2014
    Inventors: Harold W. Howe, Peter A. Lucon, Jeffrey D. Thornton, Brian Jay Seaholm
  • Patent number: 8893541
    Abstract: Appliances and methods are disclosed for testing operation of an acoustic device that generates beams of acoustic energy. An imaging array generates electrical signals in response to impinging receipt of acoustic energy. An acoustic-energy direction system is disposed to focus acoustic energy onto the imaging array. A controller is electrically coupled with the acoustic device and with the imaging array. The controller has instructions to generate an image on a display from electrical signals received by the controller from the imaging array. The electrical signals are received by the controller in response to generation of a beam of acoustic energy by the acoustic device. The beam of acoustic energy is directed towards the acoustic-energy direction system. The image provides a representation of the generated beam of acoustic energy.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: November 25, 2014
    Assignee: Acertara Acoustic Laboratories LLC
    Inventors: James Gessert, G. Wayne Moore