Backscattering of a short ultrasonic pulse from thin cylindrical shells
作者:
M. Talmant,
G. Quentin,
期刊:
Journal of Applied Physics
(AIP Available online 1988)
卷期:
Volume 63,
issue 6
页码: 1857-1863
ISSN:0021-8979
年代: 1988
DOI:10.1063/1.339882
出版商: AIP
数据来源: AIP
摘要:
We study the backscattered signal from thin cylindrical shells irradiated by short ultrasonic pulses. Various materials (duraluminum, stainless steel, copper) and various thicknesses of the shells are considered. The shells are filled with air and immersed in water except in one experiment where the surrounding medium is ethanol. From the experimental results, we deduce the variations of the group velocity of the waves circumnavigating the shell. Two such waves are observed experimentally and their dispersion curves are compared with those of the waves propagating in plates immersed in the same fluid.
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