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Temperature-corrected spectroscopic evaluation method for gas concentration monitoring

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Author

  • F. Xu
  • Y. G. Zhang
  • Gabriel Somesfalean
  • Z. G. Zhang
  • H. S. Wang
  • S. H. Wu

Summary, in English

Combustion exhaust monitoring was simulated by measurement on a sulfur dioxide flow at different temperatures using broadband absorption spectroscopy and electrochemical analysis. A linear relationship with varying rates of slope for different temperatures was found between the gas concentrations obtained using the two methods, attributed to the influence of gas volume increase and absorption line broadening. By utilizing the differential absorption at an on/off pair combined with an experimentally determined temperature correction coefficient, the sulfur dioxide concentration was evaluated with the spectroscopic method yielding a measurement precision of 4%.

Department/s

Publishing year

2007

Language

English

Pages

361-364

Publication/Series

Applied Physics B

Volume

86

Issue

2

Document type

Journal article

Publisher

Springer

Topic

  • Atom and Molecular Physics and Optics

Status

Published

ISBN/ISSN/Other

  • ISSN: 0946-2171