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Título

Analysis of a time-domain method to compute ultrasonic field through interfaces

Autor Buiochi, Flávio; Martínez-graullera, Oscar ; Gómez-Ullate Alvear, Luis; Montero de Espinosa Freijo, Francisco
Palabras clave Broadband transducers
Radiated ultrasonic field computation
Time-domain methods
Interfaces
Transmitted field
Nondestructive evaluation by ultrasound
Fecha de publicación sep-2002
EditorSociedad Española de Acústica
Citación Forum Acusticum Sevilla 2002. Ultrasonics ; ULT-03-003-IP
ResumenThis paper analyzes a time-domain method to compute the ultrasonic field radiated by broadband transducers when the acoustic field impinges interfaces. As first step, the impulse response velocity potential is determined at the interface using the Rayleigh integral. In a second step, the transmitted field is calculated considering that every elementary portion of the interface radiates a hemispherical wave. The aim of the work is to determine a compromise between the accuracy of the method and the computation time, having the temporal sampling of the transmitted signal and the spatial sampling of the aperture and the interface as variables.
Descripción 6 pages, 6 figures.-- PACS nr.: 43.35.Zc.-- Communication presented at: Forum Acusticum Sevilla 2002 (Sevilla, Spain, 16-20 Sep 2002), comprising: 3rd European Congress on Acoustics; XXXIII Spanish Congress on Acoustics (TecniAcústica 2002); European and Japanese Symposium on Acoustics; 3rd Iberian Congress on Acoustics.-- Special issue of the journal Revista de Acústica, Vol. XXXIII, year 2002.
URI http://hdl.handle.net/10261/7993
ISBN 84-87985-07-6
Aparece en las colecciones: (IAI) Comunicaciones congresos
(IA) Comunicaciones congresos
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