Methodology for detection of carbon monoxide in hot, humid media by telecommunication distributed feedback laser-based tunable diode laser absorption spectrometry
2011 (English)In: Applied Optics, ISSN 0003-6935, E-ISSN 1539-4522, Vol. 50, 1-20 p.Article in journal (Refereed) Published
Detection of carbon monoxide (CO) in combustion gases by tunable diode laser spectrometry is often hampered by spectral interferences from H2O and CO2. A methodology for assessment of CO in hot humid media using telecommunication DFB lasers is presented. By addressing the R14 line at 6395.4 cm-1, and using a dual-species-fitting technique that incorporates fitting of both a previously measured water background reference spectrum and a 2f-wavelength modulation lineshape function, %-level concentrations of CO can be detected in media with tens percent of water (c(H2O) ≤ 40 %) at ≤ 1000 °C with an accuracy of a few percent by the use of a single reference water spectrum for background correction
Place, publisher, year, edition, pages
2011. Vol. 50, 1-20 p.
IdentifiersURN: urn:nbn:se:umu:diva-43801OAI: oai:DiVA.org:umu-43801DiVA: diva2:416055
FunderSwedish Research Council, 621-2008-3674 and 621-2007-5123