DIRECTIONAL PROPERTIES OF ULTRASOUND TRANSDUCERS VIA BIPHASIC ACTUATION

    公开(公告)号:US20250046293A1

    公开(公告)日:2025-02-06

    申请号:US18923950

    申请日:2024-10-23

    Abstract: Systems and methods are provided whereby a directional property of an ultrasound transducer element, such as a steering direction, is controlled according to a first driving waveform that is delivered to opposing propagation electrodes and a second driving waveform that is delivered to opposing lateral electrodes. The directional property may be controlled according a phase difference and/or relative amplitude between the first and second driving waveforms, and/or the selective actuation of one or more lateral electrodes when the lateral electrodes are defined in an array. The ultrasound transducer element may be a ring-shaped transducer element and a directional property associated with a focal region may be controlled. In some example embodiments, array elements of an ultrasound transducer array may each include propagation and lateral electrodes, with each array element being driven by respective first and second driving waveforms to focus the ultrasound energy emitted by the ultrasound transducer array.

    Phase-based approach for ultrasonic inspection

    公开(公告)号:US12216091B2

    公开(公告)日:2025-02-04

    申请号:US17905107

    申请日:2021-02-25

    Abstract: A phase-based approach can be used for one or more of acquisition, storage, or subsequent analysis, e.g., A-scan reconstruction or Total Focusing Method imaging, in support of acoustic inspection. For example, binarization or other quantization technique can be used to compress a data volume associated with time-series signal acquisition. A representation of phase information from the time-series signal can be generated, such as by processing the binarized or otherwise quantized time-series signal. Using the representation of the phase information, a phase summation technique can be used to perform one or more of A-scan reconstruction, such as for pulse-echo A-scan inspection, or a TFM imaging technique can be used, as illustrative examples. In such a phase summation approach, time-series representations of phase data can be summed, such as where each time-series can be delayed (or phase rotated) by an appropriate delay value and then aggregated.

    DELAY LINE AND METHOD FOR ULTRASONIC INSPECTION OF A WORKPIECE

    公开(公告)号:US20250020615A1

    公开(公告)日:2025-01-16

    申请号:US18349512

    申请日:2023-07-10

    Abstract: A delay line is configured to acoustically couple a phased array transducer to a workpiece. The delay line includes a delay line bottom portion, a delay line end portion, and a delay line top portion. The delay line bottom portion has a delay line flat surface. The delay line end portion is contiguous with the delay line bottom portion and has a delay line curved surface extending upwardly from the delay line flat surface at a delay line transition point between the delay line curved surface and the delay line flat surface. The delay line top portion has an array mounting surface configured to support a phased array transducer in a manner such that ultrasonic waves emitted by the phased array transducer pass through the delay line and exit along the delay line flat surface at least up to the delay line transition point.

    Systems and methods for controlling directional properties of ultrasound transducers via biphasic actuation

    公开(公告)号:US12190858B2

    公开(公告)日:2025-01-07

    申请号:US17791406

    申请日:2021-01-08

    Abstract: Systems and methods are provided whereby a directional property of an ultrasound transducer element, such as a steering direction, is controlled according to a first driving waveform that is delivered to opposing propagation electrodes and a second driving waveform that is delivered to opposing lateral electrodes. The directional property may be controlled according a phase difference and/or relative amplitude between the first and second driving waveforms, and/or the selective actuation of one or more lateral electrodes when the lateral electrodes are defined in an array. The ultrasound transducer element may be a ring-shaped transducer element and a directional property associated with a focal region may be controlled. In some example embodiments, array elements of an ultrasound transducer array may each include propagation and lateral electrodes, with each array element being driven by respective first and second driving waveforms to focus the ultrasound energy emitted by the ultrasound transducer array.

    Surface texture of manufactured parts

    公开(公告)号:US12146856B2

    公开(公告)日:2024-11-19

    申请号:US18703718

    申请日:2023-11-20

    Abstract: A device and method for non-destructive testing of an object, such as a pipe, well casing, plane wing, rail track, weldment, bridge or manufactured part. A phased array of ultrasonic transducers moves relative to the part in one direction, while transmitting a steered wave in another direction to capture the texture from the object's surface. Diffuse and specular components of the received reflection signals are separated and beamformed for visualization. The object is then viewable as a 3D image with a texture map of the object's surface.

    PREPARATION METHOD OF SIMULATED SPECIMEN FOR NON-DESTRUCTIVE TESTING OF METAL MATERIALS

    公开(公告)号:US20240345035A1

    公开(公告)日:2024-10-17

    申请号:US18374628

    申请日:2023-09-28

    CPC classification number: G01N29/26 G01N1/28 G01N23/046 G01N2291/265

    Abstract: The invention relates to a method for preparing simulated samples for non-destructive testing of metal materials, which can carry out reverse batch copying of cavity-type defect samples, specifically: obtaining metal samples with natural and real cavity-type defects; using high-resolution X-ray industrial CT scans the sample to obtain relevant information about cavity defects in the sample; using 3D laser printing method to batch prepare new samples with combined defect characteristics that meet defect consistency; using high-resolution X-ray industrial CT to obtain the cavity defects prepared by printing are reviewed, inspected, and evaluated with the original cavity defects to verify that the printed samples meet the requirements of cavity defect consistency; save cavity defect information, scanning parameters, powder composition and printing process parameters. The method of the invention can accurately obtain defect information, can meet various non-destructive testing requirements, can be replaced with each other, and the examination and evaluation processes can be parallelized, thereby improving the efficiency.

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