Ultrasonic phased array weld defect detection method based on oblique incidence
An ultrasonic phased array and defect detection technology, which is applied to the analysis of solids using sound waves/ultrasonic waves/infrasonic waves, material analysis using sound waves/ultrasonic waves/infrasonic waves, and measurement devices. It can solve signal synthesis related calculations without research and imaging effects. , large amount of calculation and other issues, to achieve the effect of improving the defect detection rate, increasing the coverage of the beam, and improving the imaging resolution
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[0033] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0034] The present invention provides an ultrasonic phased array weld defect detection method based on oblique incidence, the structural diagram is as follows figure 1 , the ultrasonic phased array includes an ultrasonic phased array signal acquisition system, a phased array ultrasonic transducer probe, a plexiglass wedge with a certain inclination angle, a water solvent connecting the plexiglass wedge and the surface of the test block, a connecting phase The special couplant for the array ultrasonic transducer probe and the plexiglass wedge and the software for calculating the data of the ultrasonic phased array signal acquisition system; the specific implementation steps are as follows:
[0035] (a) Select an ordinary carbon steel plate with a length, height and width of 300*300*20mm as a test block. In this carbon steel plate, the shear wav...
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