Estimation of linear expansion coefficient and thermal diffusivity by photoacoustic numerical self-consistent procedure
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Аутори
Nešić, Mioljub V.Popović, Marica N.
Galović, Slobodanka
Đorđević, Katarina Lj.
Jordović-Pavlović, Miroslava I.
Miletić, V. V.
Markushev, Dragan D.
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In this paper, a self-consistent inverse procedure is developed for the estimation of linear thermal expansion coefficient and thermal diffusivity of solids from transmission photoacoustic measurement. This procedure consists of two single-parameter fitting processes applied alternately: phase data are fitted by shifting thermal diffusion coefficient, while amplitude data are fitted by shifting thermal expansion coefficient. Each fitting process uses the resulting parameter of the other, previously finished one, thus converging to the best solution-pair achievable. In numerical experiments, the convergence proves to be very fast. The achieved parameter estimation error is as low as 1%, and it can be lowered further more by increasing the fitting resolution in parameter space. The application of the procedure on experimentally obtained aluminum photoacoustic response (measurements) on three thickness levels returns the estimates of its thermal diffusion and thermal expansion coefficient...s within expected literature boundaries.
Извор:
Journal of Applied Physics, 2022, 131, 10, 105104-Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200017 (Универзитет у Београду, Институт за нуклеарне науке Винча, Београд-Винча) (RS-MESTD-inst-2020-200017)
DOI: 10.1063/5.0075979
ISSN: 0021-8979; 1089-7550
WoS: 000772438500002
Scopus: 2-s2.0-85126600513
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Институција/група
VinčaTY - JOUR AU - Nešić, Mioljub V. AU - Popović, Marica N. AU - Galović, Slobodanka AU - Đorđević, Katarina Lj. AU - Jordović-Pavlović, Miroslava I. AU - Miletić, V. V. AU - Markushev, Dragan D. PY - 2022 UR - https://vinar.vin.bg.ac.rs/handle/123456789/11558 AB - In this paper, a self-consistent inverse procedure is developed for the estimation of linear thermal expansion coefficient and thermal diffusivity of solids from transmission photoacoustic measurement. This procedure consists of two single-parameter fitting processes applied alternately: phase data are fitted by shifting thermal diffusion coefficient, while amplitude data are fitted by shifting thermal expansion coefficient. Each fitting process uses the resulting parameter of the other, previously finished one, thus converging to the best solution-pair achievable. In numerical experiments, the convergence proves to be very fast. The achieved parameter estimation error is as low as 1%, and it can be lowered further more by increasing the fitting resolution in parameter space. The application of the procedure on experimentally obtained aluminum photoacoustic response (measurements) on three thickness levels returns the estimates of its thermal diffusion and thermal expansion coefficients within expected literature boundaries. T2 - Journal of Applied Physics T1 - Estimation of linear expansion coefficient and thermal diffusivity by photoacoustic numerical self-consistent procedure VL - 131 IS - 10 SP - 105104 DO - 10.1063/5.0075979 ER -
@article{ author = "Nešić, Mioljub V. and Popović, Marica N. and Galović, Slobodanka and Đorđević, Katarina Lj. and Jordović-Pavlović, Miroslava I. and Miletić, V. V. and Markushev, Dragan D.", year = "2022", abstract = "In this paper, a self-consistent inverse procedure is developed for the estimation of linear thermal expansion coefficient and thermal diffusivity of solids from transmission photoacoustic measurement. This procedure consists of two single-parameter fitting processes applied alternately: phase data are fitted by shifting thermal diffusion coefficient, while amplitude data are fitted by shifting thermal expansion coefficient. Each fitting process uses the resulting parameter of the other, previously finished one, thus converging to the best solution-pair achievable. In numerical experiments, the convergence proves to be very fast. The achieved parameter estimation error is as low as 1%, and it can be lowered further more by increasing the fitting resolution in parameter space. The application of the procedure on experimentally obtained aluminum photoacoustic response (measurements) on three thickness levels returns the estimates of its thermal diffusion and thermal expansion coefficients within expected literature boundaries.", journal = "Journal of Applied Physics", title = "Estimation of linear expansion coefficient and thermal diffusivity by photoacoustic numerical self-consistent procedure", volume = "131", number = "10", pages = "105104", doi = "10.1063/5.0075979" }
Nešić, M. V., Popović, M. N., Galović, S., Đorđević, K. Lj., Jordović-Pavlović, M. I., Miletić, V. V.,& Markushev, D. D.. (2022). Estimation of linear expansion coefficient and thermal diffusivity by photoacoustic numerical self-consistent procedure. in Journal of Applied Physics, 131(10), 105104. https://doi.org/10.1063/5.0075979
Nešić MV, Popović MN, Galović S, Đorđević KL, Jordović-Pavlović MI, Miletić VV, Markushev DD. Estimation of linear expansion coefficient and thermal diffusivity by photoacoustic numerical self-consistent procedure. in Journal of Applied Physics. 2022;131(10):105104. doi:10.1063/5.0075979 .
Nešić, Mioljub V., Popović, Marica N., Galović, Slobodanka, Đorđević, Katarina Lj., Jordović-Pavlović, Miroslava I., Miletić, V. V., Markushev, Dragan D., "Estimation of linear expansion coefficient and thermal diffusivity by photoacoustic numerical self-consistent procedure" in Journal of Applied Physics, 131, no. 10 (2022):105104, https://doi.org/10.1063/5.0075979 . .