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handle: 10261/6944
[ES] En este trabajo se presenta una nueva técnica experimental para la medida de la velocidad del sonido en líquidos, en el rango de las bajas frecuencias ultrasónicas (< 50 khz). Esta técnica se basa en la teoría de propagación de ondas mecánicas en guías de onda elásticas, considerando éstas rellenas de un líquido viscoso. Frente a otras técnicas existentes, este método presenta la ventaja de precisar un pequeño volumen de líquido (< 10 ml) para efectuar la medida.
[EN] A new experimental technique for the sound velocity measurement in liquids in the low frequency ultrasonic range (< 50 khz) is presented in this paper. This technique is based on the mechanic wave propagation theory for elastic waveguides filled with a viscous liquid. The small liquid samples required (< 10 ml) for the measurement is an important advantage over other existing techniques.
7 pp.-- PACS nr.: 43.35 Bf.-- Comunicación presentada en los siguientes congresos: II Congreso Iberoamericano de Acústica. XXXI Congreso Nacional de Acústica – TecniAcústica 2000. II Jornadas Iberoamericanas de Ultrasonidos. II Congreso Ibérico de Acústica. EAA Symposium on Architectural Acoustics (Madrid, 16-20 Octubre 2000).
Publicado también en número especial de la Revista de Acústica, Vol. XXXI, año 2000.
Peer reviewed
Experimental techniques, Liquids, Sound velocity measurement, Low frequency ultrasonic range
Experimental techniques, Liquids, Sound velocity measurement, Low frequency ultrasonic range
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