Use neural network in photoacoustic measurement of thermoelastic properties of aluminum foil

КL Djordjević, SP Galović, MN Popović, MV Nešić… - Measurement, 2022 - Elsevier
The objective of this paper is to present methodology of the precise and reliable
determination of thermal diffusivity and linear coefficient of thermal expansion of the …

Effective thermal diffusivity of layered materials measured by modulated photothermal techniques

A Salazar, A Sanchez-Lavega, JM Terron - Journal of applied physics, 1998 - pubs.aip.org
Modulated photothermal techniques provide useful methods based on linear relations to
measure the thermal diffusivity of homogeneous materials. We have analyzed theoretically …

Theory of photoacoustic effect in media with thermal memory

S Galović, Z Šoškić, M Popović, D Čevizović… - Journal of Applied …, 2014 - pubs.aip.org
This paper presents a model for indirect photoacoustic response that includes thermal
memory effects. At low frequencies, the model reduces to the well-known thermal piston …

Simultaneous measurement of thermal conductivity and diffusivity of an undoped Al0. 33Ga0. 67As thin film epitaxially grown on a heavily Zn doped GaAs using …

M Pawlak, S Pal, S Scholz, A Ludwig, AD Wieck - Thermochimica Acta, 2018 - Elsevier
In this paper, we propose a method for measuring thermal and infrared properties of infrared
transparent and semi-transparent thin film. We have investigated an undoped Al 0.33 Ga …

Si plate radius influence on the photoacoustic signal processed by neural networks

КL Djordjevic, DK Markushev, SP Galović… - Journal of Applied …, 2022 - pubs.aip.org
The effect of the sample radius on the total photoacoustic signal processed by neural
networks trained with undistorted and distorted signals is carefully analyzed for modulation …

Heat diffusion and thermolastic vibration influence on the signal of an open photoacoustic cell for two layer systems

JL Pichardo-Molina, JJ Alvarado-Gil - Journal of applied physics, 2004 - pubs.aip.org
Thermal diffusion and thermoelastic vibration in two layer systems is studied using
photoacoustic spectroscopy. Three different two layer systems, copper/lead–tin (Cu/Pb–Sn) …

Application of neural network to study of frequency range effect to photoacoustic measurement of thermoelastic properties of thin aluminum samples

KL Djordjević, ZZ Stoisavljević, MA Dragaš… - Measurement, 2024 - Elsevier
In this paper, the influence of the measurement range on the prediction of thermoelastic and
geometric properties of a thin aluminum sample obtained by solving the inverse …

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

O Delgado-Vasallo, E Marin - Journal of Physics D: Applied …, 1999 - iopscience.iop.org
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 …

Open photoacoustic cell determination of the thermal interface resistance in two layer systems

JL Pichardo, JJ Alvarado-Gil - Journal of Applied Physics, 2001 - pubs.aip.org
In recent years the study of thermal conduction in multilayered systems has become one of
the most interesting subjects, because of the research and development of an increasing …

Thermal diffusivity measurement of solid materials by the pulsed photothermal displacement technique

GL Bennis, R Vyas, R Gupta, S Ang… - Journal of applied …, 1998 - ui.adsabs.harvard.edu
A simple, noncontact technique for the measurement of thermal diffusivity of solids is
experimentally demonstrated. The technique is based on the photothermal displacement …