To solve the problems that traditional manual inspection results cannot be visualized and automatic detection equipment is complex and non-maneuverable, a manual ultrasonic C-Scan testing method based on encoder positioning is proposed. By analyzing the characteristics of the ultrasonic A-Scan signal, an acquisition method for ultrasonic A-Scan signal characteristic parameters is established. Based on the encoder position technology, an encoder positioning manual ultrasonic scanning (EPMUC) testing system is proposed. The EPMUC testing system, which is composed of an acoustic system, positioning system and data processing system, is established. Manual ultrasonic C-Scan tests are performed on parts of a titanium alloy-brazed honeycomb sample with manual preset debonding defects and an actual titanium alloy-brazed honeycomb part with the EPMUC testing system. The test results show that the EPMUS system can effectively identify the honeycomb area and honeycomb wall area in the honeycomb structure and can detect manual preset debonding defects in the sample. The maximum detection deviation is 4.4 mm, and the imaging accuracy can reach 1 mm.
Encoder Positioning Manual Ultrasonic C-Scan Testing Method and Applications
Lect. Notes Electrical Eng.
Proceedings of the 5th China Aeronautical Science and Technology Conference ; Kapitel : 48 ; 480-493
2021-11-02
14 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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