Simultaneous optimization method for absorption spectroscopy postprocessing

A simultaneous optimization method is proposed for absorption spectroscopy postprocessing. This method is particularly useful for thermometry measurements based on congested spectra, as commonly encountered in combustion applications of H2O absorption spectroscopy. A comparison test demonstrated tha...

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Bibliographic Details
Published inApplied optics. Optical technology and biomedical optics Vol. 54; no. 14; p. 4403
Main Authors Simms, Jean M, An, Xinliang, Brittelle, Mack S, Ramesh, Varun, Ghandhi, Jaal B, Sanders, Scott T
Format Journal Article
LanguageEnglish
Published United States 10.05.2015
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Summary:A simultaneous optimization method is proposed for absorption spectroscopy postprocessing. This method is particularly useful for thermometry measurements based on congested spectra, as commonly encountered in combustion applications of H2O absorption spectroscopy. A comparison test demonstrated that the simultaneous optimization method had greater accuracy, greater precision, and was more user-independent than the common step-wise postprocessing method previously used by the authors. The simultaneous optimization method was also used to process experimental data from an environmental chamber and a constant volume combustion chamber, producing results with errors on the order of only 1%.
ISSN:2155-3165
DOI:10.1364/AO.54.004403