Electro-acoustic analogies between thermoelastic component of the photoacoustic signal and low-pass RC filter-Reference-Cited by-同舟云学术

Electro-acoustic analogies between thermoelastic component of the photoacoustic signal and low-pass RC filter

Published:2023 Issue:4 Volume:36 Page:485-497
ISSN:0353-3670
Container-title:Facta universitatis - series: Electronics and Energetics
language:en
Short-container-title:Facta Univ Electron Energ

Author:

Stanojevic Neda¹^ORCID,Markushev Dragana²^ORCID,Aleksic Sanja¹^ORCID,Pantic Dragan¹^ORCID,Lukic Dragan²^ORCID,Popovic Marica²,Markushev Dragan²^ORCID

Affiliation:

1. Faculty of Electronic Engineering, University of Niš, Niš, Serbia

2. Institute of Physics, University of Belgrade, Belgrade-Zemun, Serbia

Abstract

This paper presents a new approach to the thermal characterization of aluminum, based on the electro-acoustic analogy between the thermoelastic component of the photoacoustic signal and the passive RC low-pass filter. The analogies were used to calculate the characteristic thermoelastic cut-off frequencies of the photoacoustic component and obtain their relationship with the thickness of the aluminum samples. Detailed numerical analysis showed that the required relationship is linear in the loglog scale and can serve as a reference curve for the given material. The results of the numerical analysis were also confirmed experimentally.

Publisher

National Library of Serbia

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