Relation between the photoacoustic signal shape and the thermal parameters of the sample

Malgorzata Kopycinska-Mueller; Janusz W. Szurkowski

doi:10.1117/12.330491

11 November 1998 Relation between the photoacoustic signal shape and the thermal parameters of the sample

Malgorzata Kopycinska-Mueller, Janusz W. Szurkowski

Proceedings Volume 3581, Acousto-Optics and Applications III; (1998) https://doi.org/10.1117/12.330491
Event: Acousto-Optics and Applications III, 1998, Gdansk-Jurata, Poland

Abstract

There is commonly assumed in photoacoustic studies that the answer to sinusoidal excitation to the system is sinusoidal. In the presented contribution, using so-called an open-type photoacoustic cell, the effect of thermal signal shape was evaluated. In the studies, water was used as a reference medium of well-determined thermal diffusivity. Fresh and degraded oils were selected as studied liquids. The values of (alpha) obtained for fresh oils and degraded ones are in agreement with the table reference data reported for similar kinds of oils.

Citation Download Citation

Malgorzata Kopycinska-Mueller and Janusz W. Szurkowski "Relation between the photoacoustic signal shape and the thermal parameters of the sample", Proc. SPIE 3581, Acousto-Optics and Applications III, (11 November 1998); https://doi.org/10.1117/12.330491

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