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Revista mexicana de física
versão impressa ISSN 0035-001X
Resumo
BALDERAS-LOPEZ, J.A.. Measurements of the thermal effusivity of transparent liquids by means of a photopyroelectric technique. Rev. mex. fis. [online]. 2003, vol.49, n.4, pp.353-357. ISSN 0035-001X.
A new photopyroelectric methodology for thermal effusivity measurements in transparent liquids is presented. This methodology involves the photopyroelectric technique in the standard front-surface configuration. A signal normalization procedure, which avoids the conventional requirement for transfer function determination is implemented. The thermal effusivity of three liquids was measured by means of this device and very good agreement was found with the corresponding values reported in the literature.
Palavras-chave : Photopyroelectric techniques; thermal effusivity; transparent liquids.