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Temperature-Corrected Oxygen Detection Based on Multi-Mode Diode Laser Correlation Spectroscopy
KTH, School of Information and Communication Technology (ICT), Centres, Zhejiang-KTH Joint Research Center of Photonics, JORCEP.
2013 (English)In: Journal of Spectroscopy, ISSN 2314-4920, 524071- p.Article in journal (Refereed) Published
Abstract [en]

Temperature-corrected oxygen measurements were performed by using multi-mode diode laser correlation spectroscopy at temperatures ranging between 300 and 473 K. The experiments simulate in situ monitoring of oxygen in coal-combustion exhaust gases at the tail of the flue. A linear relationship with a correlation coefficient of -0.999 was found between the evaluated concentration and the gas temperature. Temperature effects were either auto-corrected by keeping the reference gas at the same conditions as the sample gas, or rectified by using a predetermined effective temperature-correction coefficient calibrated for a range of absorption wavelengths. Relative standard deviations of the temperature-correction coefficient calibrated for a range of absorption wavelengths. Relative standard deviations of the temperature-corrected oxygen concentrations obtained by different schemes and at various temperatures were estimated, yielding a measurement precision of 0.6%.

Place, publisher, year, edition, pages
2013. 524071- p.
Keyword [en]
Modulation Spectroscopy, Gas Control, Sensors, Dioxide
National Category
Biochemistry and Molecular Biology
Identifiers
URN: urn:nbn:se:kth:diva-107603DOI: 10.1155/2013/524071ISI: 000311152800001OAI: oai:DiVA.org:kth-107603DiVA: diva2:577040
Funder
Swedish Research Council, 621-2011-4265
Note

QC 20121214

Available from: 2012-12-14 Created: 2012-12-14 Last updated: 2012-12-14Bibliographically approved

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Somesfalean, Gabriel
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