The thermoelastic bending and thermal diffusion processes influence on photoacoustic signal generation using open photoacoustic cell technique

2013 ◽  
Vol 114 (6) ◽  
pp. 063503 ◽  
Author(s):  
A. Somer ◽  
F. Camilotti ◽  
G. F. Costa ◽  
C. Bonardi ◽  
A. Novatski ◽  
...  
Keyword(s):  
Thermal Diffusion ◽  
Diffusion Processes ◽  
Photoacoustic Signal ◽  
Signal Generation ◽  
Photoacoustic Cell ◽  
Open Photoacoustic Cell ◽  
Thermoelastic Bending

Photoacoustic signal with two heating sources: theoretical predictions and experimental results for the open photoacoustic cell technique

2020 ◽  
Vol 31 (7) ◽  
pp. 075202 ◽  
Author(s):  
Aloisi Somer ◽  
Anderson Gonçalves ◽  
Thiago V Moreno ◽  
Gerson Kniphoff da Cruz ◽  
Mauro L Baesso ◽  
...  
Keyword(s):  
Photoacoustic Signal ◽  
Experimental Results ◽  
Photoacoustic Cell ◽  
Open Photoacoustic Cell ◽  
Theoretical Predictions

scholarly journals Генерация фотоакустического сигнала двухслойными прозрачными образцами с поглощающей подложкой

2019 ◽  
Vol 45 (9) ◽  
pp. 30
Author(s):  
Т.Х. Салихов ◽  
Н. Меликхуджа ◽  
А. Махмалатиф
Keyword(s):  
Frequency Dependence ◽  
Free Path ◽  
Thermal Diffusion ◽  
Diffusion Length ◽  
Signal Amplitude ◽  
Photoacoustic Signal ◽  
Buffer Gas ◽  
Photoacoustic Cell ◽  
Opposite Case ◽  
Absorbing Substrate

AbstractA theory of generation of a photoacoustic signal in a two-layer transparent sample on an absorbing substrate to a buffer gas of a photoacoustic cell has been developed. We have shown that the frequency dependence of the photoacoustic signal amplitude excited in the absorbing substrate obeys the law ∝ ω^–1, when a free path of photons is less than the thermal diffusion length, and is proportional to ω^–3/2 in the opposite case.

THEORY OF SIGNAL GENERATION IN A PHOTOACOUSTIC CELL

1983 ◽  
Vol 44 (C6) ◽  
pp. C6-27-C6-34 ◽  
Author(s):  
B. K. Bein ◽  
J. Pelzl
Keyword(s):  
Signal Generation ◽  
Photoacoustic Cell

Dissipation of mechanical energy in a deformable solid during thermal-diffusion processes

1973 ◽  
Vol 5 (1) ◽  
pp. 1-6
Author(s):  
Ya. S. Podstrigach ◽  
R. N. Shvets ◽  
V. S. Pavlina ◽  
Ya. I. Dasyuk
Keyword(s):  
Thermal Diffusion ◽  
Diffusion Processes ◽  
Mechanical Energy ◽  
Deformable Solid

An Improved Theory of Photoacoustic Signal Generation in Gases and Liquids

1991 ◽  
pp. 511-515
Author(s):  
András Miklós ◽  
Zoltán Bozóki ◽  
András Lőrincz
Keyword(s):  
Photoacoustic Signal ◽  
Signal Generation

Optical and thermal properties of liquids measured by means of an open photoacoustic cell

2000 ◽  
Vol 11 (4) ◽  
pp. 412-417 ◽  
Author(s):  
O Delgado-Vasallo ◽  
A C Valdés ◽  
E Marín ◽  
J A P Lima ◽  
M G da Silva ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Photoacoustic Cell ◽  
Open Photoacoustic Cell

scholarly journals Benefits of the Mycorrhizal Fungi in Tomato Leaves Measured by Open Photoacoustic Cell Technique: Interpretation of the Diffusion Parameters

2008 ◽  
Vol 29 (6) ◽  
pp. 2206-2214 ◽  
Author(s):  
S. Sánchez-Rocha ◽  
M. Vargas-Luna ◽  
G. Gutiérrez-Juárez ◽  
R. Huerta-Franco ◽  
V. Olalde-Portugal
Keyword(s):  
Mycorrhizal Fungi ◽  
Photoacoustic Cell ◽  
Open Photoacoustic Cell ◽  
Diffusion Parameters

Investigation of transport properties of doped GaAs epitaxial layers using an open photoacoustic cell

2002 ◽  
Author(s):  
Sajan D. George ◽  
S. Dilna ◽  
P. S. Kumar ◽  
Periasamy Radhakrishnan ◽  
V. P. N. Nampoori ◽  
...  
Keyword(s):  
Transport Properties ◽  
Epitaxial Layers ◽  
Photoacoustic Cell ◽  
Open Photoacoustic Cell
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