Gui-based toolbox in matlab for deconvolution of ultrasonic nondestructive testing signals for defect identification

摘要

Ultrasonic pulse-echo reflection techniques are popular industrial methods for defect detection in metals. The ultrasonic wave, generated by a piezoelectric transducer coupled to the test specimen, propagates through the material and part of its energy is reflected when it encounters a non-homogeneity or discontinuity in its path, while the remainder is reflected by the back surface of the test specimen. The defect echo contains information regarding the material discontinuity that the ultrasonic wave has encountered in its path. By modeling this echo as a characteristic impulse response of the underlyin defect, various important features can be extracted. These features are useful to classify the defect and to determine its severity.