The Ultrasonic Feature Imaging Testing of special structure

摘要：

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.

关键词： focused transducer feature imaging delamination flaws column holes

作者: Minghui LU Yi ZHU Xin LIU Xunfeng LIU Yifang CHEN

作者单位: Key Laboratory of Non-destructive Test NanChang hangkong University, Nanchang, 330063, China2. NDT L NDT Lab, Department of Mechanical Engineering Tsinghua University, Beijing 100084, China

会议类型: 国际会议

会议名称: 第十七届世界无损检测会议(17th World Conference on Nondestructive Testing)

会议地点: 上海

会议语种:英文

页码: 1170-1174

在线出版日期: 2008-10-25（万方平台首次上网日期，不代表论文的发表时间）