An Overview of Testing Applications of Wavelet in Guided Waves*
نویسندگان
چکیده
Guided Waves Testing is a new technology of ultrasonic testing of NDT bloomed in recent years especially for pipes and boards inspection in industry. Different methods used in guided waves signal processing are analyzed. The contrast between Fourier and Wavelet analysis is presented to support the outstanding features of wavelet in the processing of signals with sudden changes, such as guided waves. The state of the art of the research in the application of wavelet to guided waves is described in detail. It is concluded that more abundant and clear information can be get and several certain bandwidth signals can be extracted with appropriate wavelet in guided waves in order to find the defects and their status. Wavelet is a potential analysis approach which would be used widely in guided waves inspection.
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تاریخ انتشار 2006