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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 36, Iss. 27 — Sep. 20, 1997
  • pp: 6989–6996

Two-dimensional temperature determination in the exhaust region of a laminar flat-flame burner with linear Raman scattering

Friedrich Rabenstein and Alfred Leipertz  »View Author Affiliations


Applied Optics, Vol. 36, Issue 27, pp. 6989-6996 (1997)
http://dx.doi.org/10.1364/AO.36.006989


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Abstract

For planar temperature measurements in combusting flows, the well-established laser Raman technique has been further developed to provide two-dimensional local resolution. After excitation with a frequency-doubled Nd:YAG laser, the anti-Stokes and the Stokes Raman signals of the vibrational Q branch of molecular N2 were detected at 473.3 and 607.3 nm, respectively. From the ratio of the two images, two-dimensional temperature distributions have been obtained by application of an analytical function, which was determined from theoretically calculated Raman spectra. Time-averaged measurements have been performed in the exhaust region of an atmospheric-pressure laminar CH4/air flat-flame burner for different equivalence ratios. The accuracy and precision of the results are discussed in combination with the prospects for time-resolved single-pulse measurements.

© 1997 Optical Society of America

History
Original Manuscript: January 29, 1996
Revised Manuscript: December 9, 1996
Published: September 20, 1997

Citation
Friedrich Rabenstein and Alfred Leipertz, "Two-dimensional temperature determination in the exhaust region of a laminar flat-flame burner with linear Raman scattering," Appl. Opt. 36, 6989-6996 (1997)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-36-27-6989


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