Gas temperature mapping using impedance tomography

Djebar Baroudi, Erkki Somersalo

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

Abstract

This paper discusses a novel technique of estimating gas temperatures based on impedance tomography. More specifically, assume that we have a gas funnel (e.g. doorway, window, chimney) equipped with a mesh of thin electrically conducting filaments. Furthermore, assume that the thermal and thermoelectric properties of the conducting material are known. The temperature mapping method is based on changes of the resistivity of the filaments by the changes in temperature. The inverse problem is closely related to the standard tomography problem. Due to the severe underdetermination of the problem, common inversion techniques used in computerized tomography cannot be employed here. The problem is, therefore, recast in a form of a Bayesian parameter estimation problem. Markov chain Monte Carlo methods (MCMC) are applied for exploring the posterior distribution.
Original languageEnglish
Pages (from-to)1177-1189
Number of pages13
JournalInverse Problems
Volume13
Issue number5
DOIs
Publication statusPublished - 1997
MoE publication typeA1 Journal article-refereed

Fingerprint

Tomography
Impedance
Filament
Gases
Chimneys
Computerized tomography
Computerized Tomography
Inverse problems
Parameter estimation
Markov processes
Temperature
Markov Chain Monte Carlo Methods
Bayesian Estimation
Resistivity
Monte Carlo methods
Posterior distribution
Parameter Estimation
Inversion
Inverse Problem
Mesh

Cite this

Baroudi, Djebar ; Somersalo, Erkki. / Gas temperature mapping using impedance tomography. In: Inverse Problems. 1997 ; Vol. 13, No. 5. pp. 1177-1189.
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Gas temperature mapping using impedance tomography. / Baroudi, Djebar; Somersalo, Erkki.

In: Inverse Problems, Vol. 13, No. 5, 1997, p. 1177-1189.

Research output: Contribution to journalArticleScientificpeer-review

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