Title :
Determination of dispersion curves of circumferential waves in a cylindrical shell using a chirp IDT
Author :
Li, X. ; Wang, Z. ; Cheeke, J.D.N.
Author_Institution :
Dept. of Phys., Concordia Univ., Montreal, Que., Canada
Abstract :
A new approach is presented for experimental determination of the dispersion of the circumferential waves in cylindrical shells. With a chirp IDT as a broadband transmitter and receiver made on a stainless steel tube coated with PZT film, both the group velocity and phase velocity of the circumferential waves were obtained over a wide frequency range
Keywords :
interdigital transducers; surface acoustic wave transducers; surface acoustic waves; ultrasonic dispersion; ultrasonic velocity measurement; PZT; PbZrO3TiO3; broadband transmitter/receiver; chirp IDT; circumferential waves; coated with PZT film; cross-correlation method; cylindrical shell; dispersion curves; flexural waves; group velocity; phase velocity; pulse echo technology; stainless steel tube; time delay measurement; wide frequency range; Acoustic scattering; Chirp; Frequency measurement; Performance evaluation; Phase measurement; Piezoelectric transducers; Scattering parameters; Steel; Transmitters; Velocity measurement;
Conference_Titel :
Ultrasonics Symposium, 1997. Proceedings., 1997 IEEE
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-4153-8
DOI :
10.1109/ULTSYM.1997.663115
