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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 28, Iss. 18 — Sep. 15, 1989
  • pp: 3979–3984

Line-of-sight absorption measurements of high temperature gases with thermal and concentration boundary layers

Xiang Ouyang and Philip L. Varghese  »View Author Affiliations


Applied Optics, Vol. 28, Issue 18, pp. 3979-3984 (1989)
http://dx.doi.org/10.1364/AO.28.003979


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Abstract

The effect of thermal and concentration boundary layers on experimental data must be well understood for a successful diagnostic measurement of quasi-uniform high-temperature gases using line-of-sight absorption spectroscopy. In this paper, an energy–temperature curve is proposed to assist in selection of candidate absorption lines. Two techniques, the effective absorption path length method and the direct curve–fit method, are proposed to extract absolute concentrations from absorption data obtained in the presence of boundary layers.

© 1989 Optical Society of America

History
Original Manuscript: February 28, 1989
Published: September 15, 1989

Citation
Xiang Ouyang and Philip L. Varghese, "Line-of-sight absorption measurements of high temperature gases with thermal and concentration boundary layers," Appl. Opt. 28, 3979-3984 (1989)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-28-18-3979


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References

  1. X. Ouyang, P. L. Varghese, “A Reliable and Efficient Program for Fitting Galatry and Voigt Profiles to Spectral Data on Multiple Lines,” Appl. Opt, 28, 1538–1545 (1989). [CrossRef] [PubMed]
  2. X. Ouyang, P. L. Varghese, D. S. Cline, “Simultaneous Determination of Temperature and Species Concentrations of High-Temperature Gases Using Tunable Laser Absorption Spectroscopy,” in Proceedings of the Fourth International Science Conference, Atlanta, Oct. 1988.
  3. R. K. Hanson, P. K. Falcone, “Temperature Measurement Technique for High-Temperature Gases Using a Tunable Diode Laser,” Appl. Opt. 17, 2477–2480 (1978). [CrossRef] [PubMed]
  4. P. K. Falcone, Absorption Spectroscopy of Combustion Gases Using a Tunable Diode Laser, HTGL Report No. 121 (Stanford U., 1981).
  5. S. M. Schoenung, R. K. Hanson, “CO and Temperature Measurements in a Flat Flame by Laser Absorption Spectroscopy and Probe Techniques,” Combust. Sci. Technol. 24, 227–237 (1981). [CrossRef]
  6. S. S. Penner, Quantitative Molecular Spectroscopy and Radiative Transfer (Addison-Wesley, Reading, MA, 1959).
  7. P. L. Varghese, R. K. Hanson, “Collisional Narrowing Effects on Spectral Line Shapes Measured at High Resolution,” Appl. Opt. 23, 2376–2385 (1984). [CrossRef] [PubMed]
  8. J. Humlicek, “An Efficient Method for Evaluation of the Complex Probability Function: the Voigt Function and its Derivatives,” J. Quant. Spectroc. Radiat. Transfer 21, 309–313 (1979). [CrossRef]
  9. S. A. Gearhart, M. E. Thomas, “Evaluation of a Temperature Remote Sensing Technique,” Appl. Opt. 27, 3630–3637 (1988). [CrossRef] [PubMed]

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