Ultrasonic inspection equipment facilitates alignment of display positions of three-dimensional ultrasonic inspection data and three-dimensional shape data, and quickly discriminates between a defect echo and an inner-wall echo. A computer 102A has a position correction function of correcting a relative display position between three-dimensional shape data and three-dimensional ultrasonic inspection data. A display position of the three-dimensional ultrasonic inspection data or that of the three-dimensional shape data is moved by a norm of a mean vector along the mean vector that is calculated from a plurality of vectors defined by a plurality of points selected in the three-dimensional ultrasonic inspection data and by a plurality of points selected in the three-dimensional shape data. The three-dimensional shape data and the three-dimensional ultrasonic inspection data are displayed in such a manner as to be superimposed on each other on a three-dimensional display unit 103C.

Ultrasonic inspection equipment and ultrasonic inspection method

The correction of transcranial focused ultrasound aberrations is a relevant topic for enhancing various non-invasive medical treatments. Presently, the most widely accepted method to improve focusing is the emission through multi-element phased arrays; however, a new disruptive technology, based on 3D printed holographic acoustic lenses, has recently been proposed, overcoming the spatial limitations of phased arrays due to the submillimetric precision of the latest generation of 3D printers. This work aims to optimize this recent solution. Particularly, the preferred acoustic properties of the polymers used for printing the lenses are systematically analyzed, paying special attention to the effect of p-wave speed and its relationship to the achievable voxel size of 3D printers. Results from simulations and experiments clearly show that, given a particular voxel size, there are optimal ranges for lens thickness and p-wave speed, fairly independent of the emitted frequency, the transducer aperture, or the transducer-target distance.

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On the Evaluation of the Suitability of the Materials Used to 3D Print Holographic Acoustic Lenses to Correct Transcranial Focused Ultrasound Aberrations.

Systems and methods for solid oxide fuel cell (SOFC) surface analysis. Exemplary embodiments include systems and methods for solid oxide fuel cell (SOFC) surface analysis, including a SOFC having a ceramic surface, a scanner adjacent the ceramic surface for collecting data related to the ceramic surface, a structure for retaining the SOFC with respect to the scanner, a device for collecting a processing the ceramic surface data and a process residing on the device, the process for analyzing and presenting the ceramic surface data.

Systems and methods for solid oxide fuel cell surface analysis

An ultrasonic flaw detection method according to the present invention 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.

Ultrasonic flaw-detection method and ultrasonic flaw-detection device

According to one embodiment, An ultrasonic flaw detecting apparatus comprising: a transducer in which a piezoelectric element array for transmitting ultrasonic waves to and receiving echo signals from a test object; an element driving unit for scanning the piezoelectric element array at a predetermined cycle and causing the ultrasonic waves; a synthesizing unit for synthesizing an internal image of the test object based on the echo signals received by the piezoelectric element array; and a signal replacing unit for replacing the received echo signal with an echo signal in which a bottom echo of the test object is removed.

Ultrasonic flaw detecting apparatus and ultrasonic flaw detecting method

PROBLEM TO BE SOLVED: To enable an inspector to perform visual understanding as the relationship between plate thickness and flaw detection and to precisely evaluate defects for an ultrasonic flaw detection method and an ultrasonic flaw detection device that inspect internal defects at a welded joint section or the like nondestructively. SOLUTION: A plurality of ultrasonic flaw detections are performed in the thickness direction of a body 10 to be inspected by ultrasonic flow detection channels 16, 17 composed of transmission probes 12, 13 and reception probes 14, 15; time when ultrasonic waves are propagated in the body 10 to be inspected is converted to an ultrasonic flaw detection image with linear display by corresponding to distance in thickness direction in each ultrasonic flaw detection result; the plurality of converted ultrasonic flaw detection images are synthesized in the thickness direction of the body 10 to be inspected for obtaining a flaw detection image; and the thickness direction of the body 10 to be inspected is allowed to be seen as one flaw detection image. COPYRIGHT: (C)2004,JPO&NCIPI

Ultrasonic flaw detection method and device

PROBLEM TO BE SOLVED: To solve the problem that there is no ultrasonic flaw detecting device which can easily determine a defect, in the case where the inspection result, in ultrasonic flaw detection by TOFD method, is evaluated. SOLUTION: The device comprises a measuring instrument comprising a bottom surface reflected wave removing device 13 which removes a bottom surface reflected wave to accentuate a defective signal; an ultrasonic signal correcting device 14 which amplifies an ultrasonic echo to amplify the defective signal; a synthetic aperture device 15 which amplifies the defective signal by synthetic aperture processing; a lateral wave removing device 16 which removes a lateral wave to accentuate the defective signal; and a wavelet processor 17 which reconstructs the ultrasonic echo using a wavelet analysis order to accentuate the defective signal, the measuring instrument having the function of accentuating the defective signal using any one of, or a combination of two or more of, the bottom surface reflected wave removing device 13, ultrasonic signal correcting device 14, synthetic aperture device 15 and lateral wave removing device 16, and accentuating this accentuated defective signal with the wavelet processor 17. COPYRIGHT: (C)2005,JPO&NCIPI

Ultrasonic flaw detecting method and device

PROBLEM TO BE SOLVED: To provide a flaw discriminating method which enables the easy judgment of a flaw from a detected diffracted wave in the case where the result of ultrasonic flaw detection is evaluated. SOLUTION: The diffracted wave ru, which is diffracted by the flaw, between a lateral wave due to the detection of the ultrasonic wave u, which is emitted from a transmission probe 4 to be transmitted along the surface of an inspection target 2, by a detection probe 5 and the wave, which is reflected from the base of the inspection target 2 to be detected by the detection probe 5, is detected and subsequently subjected to wavelet analysis using a wavelet base function, which has the same phase and wave number as the upper or lower end wave of a flaw signal and the same the phase of a peak amplitude waveform, thereby discriminating the upper end or lower end of the flaw 51. COPYRIGHT: (C)2006,JPO&NCIPI

康二道場

Papers

Ultrasonic flaw detection method and device

Ultrasonic flaw detecting method and device

Method and apparatus for discriminating flaw by ultrasonic flaw inspection

Ultrasonic test equipment

康二 道場

Papers

Ultrasonic flaw detection method and device

Ultrasonic flaw detecting method and device

Method and apparatus for discriminating flaw by ultrasonic flaw inspection

Ultrasonic test equipment

康二道場