Abstract

Mapping of temperature of a premixed hydrogen–oxygen flame by moire deflectometry is demonstrated. The technique is based on deflection mapping of rays from a collimated light beam due to gradients of the refractive index across the flame. For an axially symmetric flame the radial distribution of the refractive index was derived by Abel transformation. The temperature profile of the flame was calculated for a known gas composition assuming ideal gas behavior.

© 1981 Optical Society of America

Temperature mapping in flames by moire deflectometry

E. Bar-Ziv, S. Sgulim, O. Kafri, and E. Keren
Appl. Opt. 22(5) 698-705 (1983)

Analysis of 3-D phase objects by moire deflectometry

Josef Stricker
Appl. Opt. 23(20) 3657-3659 (1984)

Flame temperature and location measurements of sooting premixed Bunsen flames by rainbow schlieren deflectometry

Alfonso F. Ibarreta and Chih-Jen Sung
Appl. Opt. 44(17) 3565-3575 (2005)

Automatic fringe detection algorithm used for moire deflectometry

M. Servin, R. Rodriguez-Vera, M. Carpio, and A. Morales
Appl. Opt. 29(22) 3266-3270 (1990)

Effect of diffraction on the moire image for temperature mapping in flames

Ezra Bar-Ziv
Appl. Opt. 23(22) 4040-4044 (1984)