An Ultrasonic Phased Array Automatic Focusing Method Based on Support Vector Machine for Girth Weld
An ultrasonic phased array and support vector machine technology, which is used in the analysis of solids using sonic/ultrasonic/infrasonic waves, material analysis using sonic/ultrasonic/infrasonic waves, and measurement devices, to improve detection accuracy and efficiency.
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[0055] The present invention will be further described below in conjunction with accompanying drawing.
[0056] Embodiments of the present invention are as follows:
[0057] like figure 1 As shown, the present invention utilizes the support vector machine to realize the operation process of ultrasonic phased array intelligent dynamic focusing and can be divided into the following steps:
[0058] Step 1, the wedge is assembled on the pipeline, and the phased array probe is arranged on the wedge surface of the wedge. Each parameter such as figure 2 As shown, the distance between the wedge and the center line of the girth weld is determined to be L and the thickness of the steel pipe is D according to the instrument detection. And according to the groove form and wall thickness, the weld scanning area is divided into several layers in the height direction of the groove, the height of each layer is generally 2-3mm, and the groove partitions are numbered N from bottom to top (N...
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