... toolbox for creating the finite element mesh. A brief description of the formulation adopted follows. 25 01 2005 27 01 2005 ultrasonic materials testing pipes neural nets discrete wavelet transforms finite element analysis feature extraction inspection steel ultrasonic...

... tubing. Laser-generated interrogating ultrasonic waves in the tubing were detected by use of a fiber-tip interferometer (FTI) and a continuous wave HeNe laser. The time-frequency analysis of the generated dispersive waves was performed using the Gabor wavelet transform (GWT) that effectively decomposed...