Acoustic wave velocities in ceramics and other materials measured by a broadband goniometric method

Autor:	G. Crean, D. Zhang, R. E. Challis, R. J. Freemantle, T. Alper
Rok vydání:	1993
Předmět:	Reverberation One half Materials science business.industry Acoustics Acoustic wave Compression (physics) Shear (sheet metal) Optics Transducer Goniometer business Instrumentation Longitudinal wave
Zdroj:	Review of Scientific Instruments. 64:1271-1273
ISSN:	1089-7623 0034-6748
DOI:	10.1063/1.1144078
Popis:	This article describes an economical short‐pulse ultrasound system with a goniometer stage, with which both compression and shear wave reverberations in thin ceramic or other material samples may be separately time resolved. Arrival times of individual reverberations are compared to estimates made by computer simulation of the wave system by means of a parameter fitting routine. The system output gives compression and shear velocities based on several reverberations in the test material. Wide frequency bandwidths are achieved by using acoustically thick PZT transducers in time intervals less than one half period of their fundamental compression wave frequency.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::562db9c2f81ad65c80fd0b1b6b2be729 https://doi.org/10.1063/1.1144078 Zobrazit plný text záznamu