Signal Analysis of Ultrasonic C-Scan Testing for Multi-layer Welding Structure
نویسندگان
چکیده
The multi-layer welding structure is a kind of important weld component used in modern aviation industry. In order to control the quality of the inner welds, the method of ultrasonic immersion testing with focusing probe has been performed in this study. Some testing signals displayed in the screen are overlapping signals composed by the echoes with different propagation routes in the multi-layer welding structure. In this paper, a method is given to recognize the valid signal basing on the analysis of sound routes. Computer simulation and a series of experiments are performed to prove the validity of the method.
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