Abstract

OH-concentration distributions and temperature profiles have been measured on a premixed propane–air flame by laser deflection techniques. Photothermal deflection spectroscopy has been utilized for the measurement of the OH radical. Both a low-spatial-resolution (near collinear) and high-spatial-resolution (crossed-beam) scheme were used to profile the premixed flame. An optoacoustic deflection technique was utilized for thermometry. Both average-temperature profiles and probability distribution functions were determined by this technique. A comparison with data obtained by the CARS technique demonstrated that no significant flame perturbation was occurring.

© 1984 Optical Society of America

Measurement of absolute minority species concentration and temperature in a flame by the photothermal deflection spectroscopy technique

Yunjing Li and Rajendra Gupta
Appl. Opt. 42(12) 2226-2235 (2003)

Temperature measurements of the hydroxyl radical and molecular nitrogen in premixed, laminar flames by laser techniques

J. H. Bechtel
Appl. Opt. 18(13) 2100-2106 (1979)

Pulsed laser optoacoustic detection of flame species

Gregory P. Smith, Mark J. Dyer, and David R. Crosley
Appl. Opt. 22(24) 3995-4003 (1983)

Photoacoustic detection of OH molecules in a methane–air flame

A. Rose, J. D. Pyrum, G. J. Salamo, and R. Gupta
Appl. Opt. 23(10) 1573-1579 (1984)

Detection of OH in flames by using polarization spectroscopy

K. Nyholm, R. Maier, C. G. Aminoff, and M. Kaivola
Appl. Opt. 32(6) 919-924 (1993)