Class / Patent application number | Description | Number of patent applications / Date published |
073598000 | For flaw or discontinuity detection | 42 |
20090007678 | Method and apparatus for measuring flaw height in ultrasonic tests - The measurement of a flaw height in a thick welded portion of a stainless steel specimen, which is difficult to perform by the TOFD method, can be conducted with more ease, with higher accuracy and in a shorter time than in the case of using tip echo techniques. In addition, it is possible to reduce variations in measurement results among individual inspectors. | 01-08-2009 |
20090095085 | Defect Detection Method of Turbine Generator End Ring - A defect detection method of a turbine generator end ring includes a first ultrasonic testing step of conducting ultrasonic testing by an angle beam technique to the turbine generator end ring, a second ultrasonic testing step of conducting, when an indication echo is detected by the first ultrasonic testing step, ultrasonic testing by a focusing straight beam technique to a portion of the turbine generator end ring from which an indication echo is detected and an interpretation step of interpreting whether the indication echo is a defect echo or a false echo based on a testing result by the second ultrasonic testing step. | 04-16-2009 |
20090120190 | METHOD AND A SYSTEM FOR MONITORING STRUCTURAL CHANGES OF A FIBER WEB - A method for monitoring the structural state of a fiber web ( | 05-14-2009 |
20090151456 | DOWNHOLE TOOL DAMAGE DETECTION SYSTEM AND METHOD - A downhole tool damage detection method includes, transmitting ultrasonic energy through a downhole tool, receiving ultrasonic energy transmitting through the downhole tool, monitoring the received ultrasonic energy for changes over time, and alerting that damage in the downhole tool may exist in response to finding the changes. | 06-18-2009 |
20090199642 | ULTRASONIC FLAW DETECTION APPARATUS AND ULTRASONIC FLAW DETECTION METHOD - [Object] To simply and accurately determine the position of an edge, the depth or the height of a flaw including a surface crack, a corroded portion near the surface layer of a thick specimen, and a minute damage. | 08-13-2009 |
20090301198 | Methods, Apparatuses, and Systems for Damage Detection - Methods, apparatuses, and systems for damage detection and for other detection of the state of a structure or material. Such damage detection and detection of the state of a structure may be performed and operated without the use of baseline data. The present invention may operate using time reversal acoustics or polarization characteristics of piezoelectric devices. The present invention may include a piezoelectric device including two or more piezoelectric transducers. | 12-10-2009 |
20090308163 | Ultrasonic Flaw Detection Apparatus and Ultrasonic Flaw Detection Program - A plurality of ultrasonic flaw detection methods can be switched and executed by a simple operation. | 12-17-2009 |
20100218609 | METHOD AND SYSTEM FOR ULTRASONIC INSPECTION OF GEARBOX RING GEAR - A method and system for ultrasonically inspecting a ring gear of a gearbox is provided. The method and system can be used for the detection, characterization and/or sizing of defects in the ring gear. The ring gear has a plurality of teeth, which extend radially inward with respect to an outer surface of the gearbox. The method includes the steps of selecting an ultrasonic transducer productive of a test signal, positioning the ultrasonic transducer at an outer surface of the ring gear, orienting the ultrasonic transducer so as to direct the test signal to propagate through the ring gear, and activating the ultrasonic transducer so as to test the ring gear for defects therein. | 09-02-2010 |
20110072903 | PORTABLE DEVICE FOR ASSESSING WARP STABILITY - The present disclosure includes a portable device for assessing warp stability of a wood element having two or more planar surfaces. In some embodiments, the portable device includes a sensor housing positioned adjacent to the wood element, a first sensor group configured to sense one or more first measurements on a first planar surface, and a second sensor group configured to sense one or more second measurements on a second planar surface. The first measurements and the second measurements are inputted into an algorithm for assessing warp stability of the wood element. In some embodiments the model is based at least partially on measurement of compression wave velocity. In some embodiments, the model is based on the tracheid effect. | 03-31-2011 |
20110154903 | METHOD FOR STRUCTURAL HEALTH MONITORING USING A SMART SENSOR SYSTEM - The structural health monitoring method of the present invention utilizes ultrasound to determine information about deformation, stress and/or damage in structural elements. The method propagates ultrasound through at least a portion of a material having fully-reversible nonlinear elasticity, receives the ultrasound which has been propagated through at least a portion of the material and determining information about the structural element from attenuation and/or time of flight of said received ultrasound. | 06-30-2011 |
20110247417 | PULSE-ECHO METHOD BY MEANS OF AN ARRAY-TYPE PROBE AND TEMPERATURE COMPENSATION - The invention relates to a nondestructive ultrasonic test method in which at least one ultrasonic pulse is emitted into a workpiece under test by means of at least one ultrasonic transmitter ( | 10-13-2011 |
20120085173 | NON-INTRUSIVE SENSOR FOR IN-SITU MEASUREMENT OF RECESSION RATE OF ABLATIVE AND ERODING MATERIALS - 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. | 04-12-2012 |
20120255359 | Transducer Based Health Monitoring System - A method and apparatus for detecting an inconsistency in an object. A signal sent from a first transducer unit is received at a second transducer unit. The signal is sent along a path through an object from the first transducer unit to the second transducer unit. The second transducer unit has segments. A velocity is identified at each segment in the segments for a number of modes for the signal to form identified velocities. A determination is made as to whether the inconsistency is present along the path through the object using the identified velocities for the number of modes for the signal. | 10-11-2012 |
20120285247 | TESTING METHOD USING GUIDED WAVE - A testing method using a guided wave generates a guided wave to propagate through a subject as a testing target in a longitudinal direction of the subject, detects a reflected wave of the guided wave and examines the subject on the basis of the reflected wave. The testing method includes the steps of (A) obtaining data for defect amount estimation beforehand indicating a relationship between a defect amount of the subject and a magnitude of a reflected wave, (B) generating a guided wave so as to propagate through the subject, and detecting a reflected wave of the guided wave, and (C) estimating a defect amount of the subject on the basis of the data for defect amount estimation obtained at (A) and the magnitude of the guided wave detected at (B). | 11-15-2012 |
20120291552 | TESTING METHOD USING GUIDED WAVE - (A) first data for defect amount estimation for the guided wave of a first frequency is obtained, the data indicating a relationship among amplitude of the reflected wave, a defect cross-sectional area and a defect width. (B) second data for defect amount estimation for the guided wave of a second frequency is obtained, the data indicating a relationship among amplitude of the reflected wave, a defect cross-sectional area and a defect width. (C) a guided wave of the first frequency is generated, and amplitude of a reflected wave is detected as first amplitude. (D) a guided wave of the second frequency is generated, and amplitude of a reflected wave is detected as second amplitude. (E) on a basis of the first and second data and the first and second amplitude, a defect cross-sectional area and a defect width of the defect part are estimated. | 11-22-2012 |
20130055816 | METHOD AND APPARATUS FOR PROVIDING A STRUCTURAL CONDITION OF A STRUCTURE - The invention relates to a method for providing a structural condition of a structure, comprising providing an excitation wave generator; providing an excitation wave sensor; injecting an excitation burst wave into the structure using the excitation wave generator; obtaining a measured propagated excitation burst wave using the excitation wave sensor; correlating the measured propagated excitation burst wave with one of a plurality of theoretical dispersed versions of the excitation burst wave; and providing an indication of the structural condition of the structure corresponding to the correlated measured propagated excitation burst wave. The method may offer a better localization of the reflection points and thus of the potential defects present in a structure under inspection, when compared with a group velocity-based or time-of-flight (ToF) approach. The method may be particularly useful for structural health monitoring (SHM) and Non-Destructive Testing (NDT). The method may also enable determination of the mechanical properties of the structure. | 03-07-2013 |
20130111995 | DESTRUCTION-FREE AND CONTACTLESS INSPECTION METHOD AND INSPECTION APPARATUS FOR SURFACES OF COMPONENTS WITH ULTRASOUND WAVES - The invention relates to a method of nondestructive and contactless testing of components ( | 05-09-2013 |
20130145849 | Method and Apparatus to Detect Wire Pathologies Near Crimped Connector - 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. | 06-13-2013 |
20130152689 | METHOD AND DEVICE FOR THE DETECTION OF RECORDING MEDIA - 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. | 06-20-2013 |
20130160551 | ULTRASONIC FLAW DETECTION DEVICE AND ULTRASONIC FLAW DETECTION METHOD - According to an embodiment, an ultrasonic flaw detection device is provided with: an ultrasonic probe, which applies ultrasonic waves, by driving a plurality of ultrasonic elements, to a test object to be inspected, and which receives reflected ultrasonic waves from the test object; and an analysis unit, which analyzes the signals of the reflected ultrasonic waves received by the ultrasonic probe, and which calculates the flaw detection results. The analysis unit calculates the flaw detection results using an ultrasonic wave propagation path obtained on the basis of the surface information of the test object having the ultrasonic waves applied thereto, thereby obtaining highly accurate detection results even the surface of the test object is formed in complex shape. | 06-27-2013 |
20130263667 | SYSTEM AND METHOD FOR PERFORMING ULTRASONIC PIPELINE WALL PROPERTY MEASUREMENTS - Pipeline wall thickness is measured as a function of position using ultrasound propagation. A series of predictive models is used, which define predictions of the ultrasound response signals as a function of different sets of parameters. The different sets that are determine of position dependent ultrasound speed at different sound frequencies and different spatial resolution. Successive iterative fitting process are executed, each fitting a combination of values of a successive set of parameters to the detected ultrasound response signals according to a respective model, using the values fitted values from the previous fitting process to initialize the next set of parameters for iterative fitting. At least the first model defines predictions of wave vector values as a function of circumferential position in successive rings around the pipe as sums of wave vector value for a plurality of circumferential positions in a preceding one of the rings multiplied by propagation coefficients, using propagation coefficients that depend on a first set of parameters. | 10-10-2013 |
20130269441 | ULTRASONIC METHOD AND SYSTEM FOR DETERMINING TISSUE PATHOLOGY - A method for determining a pathology of a tissue sample. The method includes steps of coupling the tissue sample between two oppositely-facing ultrasonic transducers; acquiring a pulse-echo ultrasonic measurement and a through-transmission ultrasonic measurement of the tissue sample using the ultrasonic transducers; analyzing at least one of the pulse-echo ultrasonic measurement and the through-transducer transmission ultrasonic measurement using time domain analysis; analyzing at least one of the through-transmission ultrasonic measurements and the pulse-echo ultrasonic measurements using frequency domain analysis; and determining the pathology of the tissue sample based on at least one of the time domain analysis and the frequency domain analysis. | 10-17-2013 |
20140000369 | METHOD OF MEASURING A CRYSTALLOGRAPHIC ORIENTATION OF AN OBJECT | 01-02-2014 |
20140144239 | METHOD AND DEVICE FOR CHECKING STRUCTURES BY TIME REVERSAL - The present invention relates to a method of non-destructive inspection of mechanical structures ( | 05-29-2014 |
20140305216 | Apparatus for Automated Non-Destructive Inspection of Airfoil-Shaped Bodies - 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. | 10-16-2014 |
20140352436 | MONITORING TEMPERATURE VARIATION IN WEDGE OF PHASED-ARRAY PROBE FOR WELD INSPECTION - 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. | 12-04-2014 |
20140366633 | METHOD FOR DETERMINING THE QUALITY OF NON-CROSSLINKED RUBBER MIXTURES, AND CORRESPONDING DEVICE - 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. | 12-18-2014 |
20150027227 | CRACK AND THICKNESS DETECTING APPARATUS - 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. | 01-29-2015 |
20150053009 | ULTRASONIC GUIDED WAVE CORROSION DETECTION AND MONITORING SYSTEM AND METHOD FOR STORAGE TANK FLOORS AND OTHER LARGE-SCALE, COMPLEX, PLATE-LIKE STRUCTURES - 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. | 02-26-2015 |
20150330947 | METHOD AND DEVICE FOR THE NEAR SURFACE, NONDESTRUCTIVE INSPECTION BY MEANS OF ULTRASOUND OF A ROTATIONALLY SYMMETRIC WORKPIECE HAVING A DIAMETER THAT CHANGES FROM SECTION TO SECTION - A method and a device for the near-surface, non-destructive inspection by means of ultrasound of a rotationally symmetric workpiece having a diameter that changes from section to section are provided. The method and device are based on the insonification of an ultrasonic test pulse into the workpiece at a defined insonification angle and the subsequent recording of an ultrasonic echo signal from the workpiece. Echo signals that trace back to a near-surface region ROI of the workpiece are identified and evaluated. Then, a graphic representation of the surface of the workpiece is generated. | 11-19-2015 |
20150330948 | METHOD AND DEVICE FOR THE NON-DESTRUCTIVE INSPECTION OF A ROTATIONALLY SYMMETRIC WORKPIECT HAVING SECTIONS WITH DIFFERENCE DIAMETERS - A method and a device for the non-destructive inspection of a rotationally symmetric workpiece having sections with different diameters by a non-destructive inspection technique, such as ultrasound, are provided. Within the context of the method, a test data set characterizing the material properties of the workpiece is generated by the inspection technique. An azimuth angle-dependent indicated value set is generated therefrom. Subsequently, a representation of the workpiece is generated, wherein the elements of the indicated value set are depicted in the representation in a spatially resolved manner. In particular, a graphic representation of the surface of the workpiece can be generated in which flaw signals are displayed that may have been found. | 11-19-2015 |
20150331100 | ULTRASONIC DETECTION DEVICE AND DETECTION METHOD THEREOF - The present invention is directed to an ultrasonic detection device and detection method thereof. The ultrasonic detection device includes a processor and a transceiver module, whereby the transceiver module may be operated to enter an additional reception mode and receive a first ambient echo. The processor may analyze the first ambient echo and generate an analysis result. When the generated analysis result shows that the first ambient echo has a signal characteristic indicative of an interference source in the environment, the transceiver module may again enter the additional reception mode before a detection operation is performed. As a result, an elimination mode may be performed to correctly obtain or distinguish the corresponding reflected wave of the detection operation, thereby avoiding an error of operation, such as distance detection, due to the presence of an interference source. | 11-19-2015 |
20150377836 | Nonlinear Ultrasonic Testing For Non-Destructive Measurement Of Longitudinal Thermal Stresses In Solids - Methods and apparatus, including computer program products, are provided for nonlinear ultrasonic testing. In one aspect there is provided a method, which may include generating at least one ultrasonic wave to enable the at least one ultrasonic wave to propagate through a solid; detecting the at least one ultrasonic wave propagating through the solid; and determining a stress of the solid based on at least one of an imaginary component of a wavenumber, a wave amplitude, a wave strength, a statistical moment in a time domain, or a statistical moment in a frequency domain of the at least one ultrasonic wave. | 12-31-2015 |
20160054266 | ULTRASONIC FLAW DETECTION METHOD AND ULTRASONIC FLAW DETECTION APPARATUS - An ultrasonic flaw detection method includes a condition setting step of setting a boundary echo detection threshold and a gate end point relative position, according to a type of a test object, a flaw detection signal obtaining step of obtaining a flaw detection signal by converting ultrasonic waves received from the test object to an electric signal, a boundary echo detection step of detecting a boundary echo detection time of the flaw detection signal by using the boundary echo detection threshold, a flaw echo detection gate setting step of setting an end point of a flaw echo detection gate by subtracting the gate end point relative position from the boundary echo detection time, and a flaw echo detection step of detecting a flaw echo by using the flaw detection signal within the flaw echo detection gate. | 02-25-2016 |
20160109412 | PIEZOELECTRIC SHEAR RINGS FOR OMNIDIRECTIONAL SHEAR HORIZONTAL GUIDED WAVE EXCITATION AND SENSING - An ultrasonic guided wave system for defect detection in a plate-like structure, includes at least one first circumferentially-polarized piezoelectric d | 04-21-2016 |
20160109413 | METHODS AND SYSTEMS FOR MEASURING CORROSION IN-SITU - Systems and methods for measuring corrosion rate of an equipment material are provided. A system may comprise a corrosion probe body for insertion within an interior of the equipment through which corrodant fluid flows. At least one sensor on the corrosion probe body includes an ultrasonic source configured to provide an ultrasonic signal into the probe body material, and a receiver configured to receive reflections of the ultrasonic signal from the probe body material and generate electrical response signals indicative of the travel time of the ultrasonic signal. A heat exchanger may be placed in fluid communication with the probe body to deliver heated or cooled fluids to the probe body. A processor is configured to process the electrical response signals and produce corresponding corrosion data. | 04-21-2016 |
20160116442 | DESTRUCTION-FREE AND CONTACTLESS INSPECTION METHOD AND INSPECTION APPARATUS FOR SURFACES OF COMPONENTS WITH ULTRASOUND WAVES - The invention relates to a method of nondestructive and contactless testing of components ( | 04-28-2016 |
20160146762 | METHOD AND DEVICE FOR TESTING DEFECT BASED ON ULTRASONIC LAMB WAVE TOMOGRAPHY - Disclosed are a method and a device for testing a defect based on an ultrasonic Lamb wave tomography. The method includes: partitioning an imaging area of a material to be tested into grids; exciting electromagnetic acoustic transducers for emitting to emit Lamb waves with a A0 mode in all directions, and electromagnetic acoustic transducers for receiving to receive the Lamb waves; obtaining a time-frequency analysis result and recording time-of-flights of testing waves; determining a first slowness of each grid to obtain a first defect area; establishing an extrapolation formula according to the first defect area, and iterating the extrapolation formula to trace and revise paths of the Lamb waves until a better imaging precision is obtained. | 05-26-2016 |
20160161450 | ULTRASOUND METHOD AND DEVICE FOR REPRESENTING THE PROPAGATION OF ULTRASOUND WAVES IN A GUIDE OF LINEARLY VARIABLE THICKNESS - Device for the representation, in a frequency-wave number reference frame f-k, of the propagation of an ultrasound wave in a dihedral guide ( | 06-09-2016 |
20160202213 | SYSTEM AND METHOD FOR DEFECT MONITORING | 07-14-2016 |
20160202214 | STRUCTURAL DEFORMATION DETECTING DEVICE | 07-14-2016 |
20160202216 | STRUCTURAL DEFORMATION DETECTING DEVICE | 07-14-2016 |