Abstract

A new method for a measurement of flow velocities in flames using the photothermal deflection technique is demonstrated. The technique has been applied to measure the velocity profile of a laminar H₂/O₂ flame. The method is nonintrusive and has a high degree of spatial and temporal resolution.

© 1985 Optical Society of America

Measurements of very low gas flow velocities by photothermal deflection spectroscopy

Y.-X. Nie, K. Hane, and R. Gupta
Appl. Opt. 25(18) 3247-3252 (1986)

Gas velocity measurements using photothermal deflection spectroscopy

Jeffrey A. Sell
Appl. Opt. 24(22) 3725-3735 (1985)

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)

Hydroxyl (OH) distributions and temperature profiles in a premixed propane flame obtained by laser deflection techniques

Sigmund W. Kizirnis, Robert J. Brecha, Biswa N. Ganguly, Larry P. Goss, and Rajendra Gupta
Appl. Opt. 23(21) 3873-3881 (1984)

Time-resolved flow-velocity and concentration measurements using a traveling thermal lens

H. Sontag and A. C. Tam
Opt. Lett. 10(9) 436-438 (1985)