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The application of the photoacoustic technique to the measurement of the thermal effusivity of liquids

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Published under licence by IOP Publishing Ltd
, , Citation O Delgado-Vasallo and E Marín 1999 J. Phys. D: Appl. Phys. 32 593 DOI 10.1088/0022-3727/32/5/014

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Author affiliations

1 IMRE, Universidad de La Habana, San Lázaro y L, Vedado 10400, Ciudad de La Habana, Cuba

2 Universidade Estadual do Norte Fluminense. Centro de Ciencia e Tecnologia, Laboratorio de Ciencias Fisicas, Avenida Alberto Lamego 2000, 28015-620, Campos dos Goytacazes, RJ, Brasil

Dates

  1. Received 16 September 1998

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0022-3727/32/5/593

Abstract

We describe the application of the photoacoustic technique to the thermal characterization of liquids. An experimental method which allows the experimental determination of the thermal effusivity in transparent as well as in light absorbing samples is proposed. The method is tested by measurements in water, ethanol, diffusion-pump oil, glycerol and petroleum. Our results agree quite well with the literature reported values for these samples.

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10.1088/0022-3727/32/5/014