Abstract
The disperse curves of lamb waves in glass fibre reinforced aluminium laminate (GLARE laminate) is the basis of GLARE laminate's ultrasonic lamb waves’ detection. In this paper, air-coupled ultrasonic transmitter–receiver system and transducers were used to generate and receive lamb waves in the GLARE laminate. Continuous wavelet transform was applied to the lamb waves' signals to obtain the characteristic information in time–frequency domain. Select the points from the contour line and draw the disperse curves. Compare the experimental disperse curves with the theoretical ones. The experimental results of the A0 mode agree well with the theoretical dispersion curve.
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