Patent
Ultrasonic phased arrayline scanning sensitivity computing method based on measurement model
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TLDR
In this article, an ultrasonic phased array line scanning sensitivity computing method based on a measurement model is presented, which comprises the steps of processing a synthetic sound field of an UAV as a whole; on the premise of measuring a quasi-plane wave and a small defect body, respectively building a phased array system measuring model and a test block model; calculatingto obtain sound radiation intensity at a cross through hole defect position, solving a frequency domain echo voltage signal of a cross-through hole defect, and accomplishing the drawing of a sound field distance-amplitude curve DACAbstract:
The invention provides an ultrasonic phased arrayline scanning sensitivity computing method based on a measurement model. The method comprises the steps of processing a synthetic sound field of an ultrasonic phased array as a whole; on the premise of measuring a quasi-plane wave and a small defect body, respectively building a phased array system measuring model and a test block model; calculatingto obtain sound radiation intensity at a cross through hole defect position, solving a frequency domainecho voltage signal of a cross through hole defect, and accomplishing the drawing of a sound field distance-amplitude curve DAC. According to the ultrasonic phased arrayline scanningsensitivity computing method based on the measurement model provided by the invention, the focusing performance and detection sensitivity change rule of an ultrasonic phased array detecting system can be quantitatively analyzed, and different focused sound field distance-amplitude curves are drawn through respectively adjusting the size of the cross through hole defect in the test block model, a phased array focusing depth and a phased array focusing deflection angle.read more
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Journal ArticleDOI
Measurement Models and Scattering Models for Predicting the Ultrasonic Pulse-Echo Response From Side-Drilled Holes
TL;DR: In this paper, the authors developed reciprocity-based measurement models along with scattering models that allow us to predict the ultrasonic response from a side-drilled hole (SDH) in a pulse-echo immersion setup.
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System and method of conducting refraction angle verification for phased array probes using standard calibration blocks
Jinchi Zhang,Jason Habermehl +1 more
TL;DR: In this article, an ultrasonic phased array non-destructive inspection system that includes a PA probe, a conventional PA inspection unit and a refraction angle verification unit is described, which is employed to emit ultrasonic angle beams into an AWS IIW Block and to receive corresponding echo signals reflected from the calibration block and to provide time-of-flight (TOF) values corresponding to each angle beam.