Direct and inverse problems of infrared tomography

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F16%3A33159758" target="_blank" >RIV/61989592:15310/16:33159758 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1364/AO.55.000208" target="_blank" >http://dx.doi.org/10.1364/AO.55.000208</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1364/AO.55.000208" target="_blank" >10.1364/AO.55.000208</a>

Result language

angličtina

Original language name

Direct and inverse problems of infrared tomography

Original language description

The problems of infrared tomography-direct (the modeling of measured functions) and inverse (the reconstruction of gaseous medium parameters)-are considered with a laboratory burner flame as an example of an application. The two measurement modes are used: active (ON) with an external IR source and passive (OFF) without one. Received light intensities on detectors are modeled in the direct problem or measured in the experiment whereas integral equations with respect to the absorption coefficient and Planck function (which yields the temperature profile of the medium) are solved in the inverse problem with (1) modeled and (2) measured received intensities as the input data. An axisymmetric flame and parallel scanning scheme of measurements considered in this work yield singular integral equations that are solved numerically using the generalized quadrature method, spline smoothing, and Tikhonov regularization. A software package in MATLAB has been developed. Two numerical examples-with modeled and real input data-were solved. The proposed methodology avoids the necessity of elaborate determination of the absorption coefficient by direct (point) measurements or calculation using spectroscopic databases (e.g., HITRAN/HITEMP).

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BH - Optics, masers and lasers

OECD FORD branch

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Project

<a href="/en/project/EE2.3.30.0004" target="_blank" >EE2.3.30.0004: POST-UP</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Applied Optics

ISSN

1559-128X

e-ISSN

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Volume of the periodical

55

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

208-220

UT code for WoS article

000367091400029

EID of the result in the Scopus database

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