Abstract

A technique for measuring translational flame temperature utilizing the laser induced fluorescence spectrum of OH is demonstrated. The method is based on matching the observed spectrum to a numerical model in which the detailed balance temperature is a parameter. The precision of the method exceeds that of the line reversal technique. Accuracy is limited by the calibration source and the validity of the numerical rotational relaxation rate model.

© 1980 Optical Society of America

Laser excitation dynamics of OH in flames

Calvin Chan and John W. Daily
Appl. Opt. 19(8) 1357-1367 (1980)

Temperature measurement by two-line laser-saturated OH fluorescence in flames

Robert P. Lucht, Normand M. Laurendeau, and Donald W. Sweeney
Appl. Opt. 21(20) 3729-3735 (1982)

Vibrational energy transfer in laser-excited A²∑⁺ OH as a flame thermometer

David R. Crosley and Gregory P. Smith
Appl. Opt. 19(4) 517-520 (1980)

Temperature measurements in flames using thermally assisted laser-induced fluorescence of Ga

Richard G. Joklik, J. J. Horvath, and H. G. Semerjian
Appl. Opt. 30(12) 1497-1504 (1991)

OH rotational temperature from two-line laser-excited fluorescence

Robert Cattolica
Appl. Opt. 20(7) 1156-1166 (1981)