ADVANCES IN ULTRASONIC CYLINDRICAL GUIDED WAVES TECHNIQUES AND THEIR APPLICATIONS
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摘要:综述无损检测中的超声柱面导波技术及其应用研究进展。给出导波的频散及多模式特征，着重评述超声导波的模式和频率选择、导波的激励和接收方法、导波与缺陷的相互作用、信号处理与特征提取以及导波技术在无损检测中的应用前景。Abstract:The recent research advances in ultrasonic cylindrical guided waves techniques and their applications in the field of NDT are briefly reviewed. An introduction on the concepts of guided waves and their characteristics is given. The choices of the modes of guided waves and exciting frequency, the methods of exciting and receiving guided waves, the interaction of guided waves with defects, the methods of signal processing and the possible applications in NDT are reviewed.
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Key words:
- ultrasonic guided waves/
- frequency disperse/
- pipes/
- NDT
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