The Ultrasonic Feature Imaging Testing of special structure
نویسندگان
چکیده
The broadband narrow pulse self-focusing ultrasonic transducer was designed for the special structure of the column holes, and used to do the research for the testing of bonding layer of metal composite material with F-scan ultrasonic imaging system. The copper-steel boding layer of bimetal rotor is connected by diffusing welding. There may be delamination flaws existed here. The depth and range feature image can be displayed through the full wave trains time-frequency transform of the ultrasonic signal. Then the people could find out the delamination flaws of bonding layer and estimate their size by analyzing and evaluating the information of the images.
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