Abstract
An intensified multi-colour digital imaging system allowing simultaneous monitoring of light from an object in four wavelength bands was used for flame emission studies. The spatial distribution of the molecular emission from different flame radicals, such as OH, C2, CH, and CN was recorded, also in the presence of a heavy background due to Planck-radiating soot particles. Exposure times down to 8 μs could be reached allowing studies of turbulent flames. The imaging spectroscopic recordings were supported by simultaneous point monitoring of the full emission spectrum. A technique for imaging flow measurements using a spectroscopic gas correlation technique is proposed.
Similar content being viewed by others
References
T.D. McCay, J.A. Roux (eds.): Combustion Diagnostics by Nonintrusive Methods. Progr. Astronaut. Aeronaut. 92 (1983)
A.C. Eckbreth: Laser Diagnostics for Combustion Temperature and Species (Abacus, Turnbridge Wells 1987)
M. Aldén, H. Edner, P. Grafström, H.M. Hertz, G. Holmstedt, T. Högberg, H. Lundberg, S. Svanberg, S. Wallin, W. Wendt: In Lasers 86, ed. by K.M. Corcoran, D.M. Sullivan, W.C. Stwalley (STS, McLean, VA 1985) p. 209
A.C. Gaydon: The Spectroscopy of Flames (Chapman and Hall, New York 1974)
A.C. Gaydon, H.G. Wolfhard: Flames, Their Structure, Radiation and Temperature (Chapman and Hall, New York 1979)
P.S. Andersson, S. Montán, S. Svanberg: IEEE J. QE-23, 1798 (1987)
S. Andersson-Engels, J. Johansson, S. Svanberg: Multicolor fluorescence imaging system for tissue diagnostics. SPIE 1205 (SPIE, Bellingham 1990)
M.J. Dyer, D.R. Crosley: Opt. Lett. 7, 382 (1982)
L. Sturesson, S. Svanberg, U. Westblom: Unpublished (1988)
S. Svanberg: In Resonance Ionization Spectroscopy, ed. by N. Omenetto (Plenum, New York 1990)
H.M. Hertz, G.W. Faris: Opt. Lett. 13, 351 (1988)
M. Aldén, H. Edner, G. Holmstedt, S. Svanberg, T. Högberg: Appl. Opt. 21, 1236 (1982)
M. Aldén, H. Edner, S. Svanberg: Appl. Phys. B29, 93 (1982)
R.K. Hansen: 21st International Symposium on Combustion (The Combustion Institute, Pittsburgh 1986) p. 1677
J.B. Jeffries, R.A. Copeland, G.P. Smith, D.R. Crosley: 21st International Symposium on Combustion (The Combustion Institute, Pittsburgh 1986) p. 1709
U. Westblom, M. Aldén: Appl. Opt. 28, 2592 (1989)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kauranen, P., Andersson-Engels, S. & Svanberg, S. Spatial mapping of flame radical emission using a spectroscopic multi-colour imaging system. Appl. Phys. B 53, 260–264 (1991). https://doi.org/10.1007/BF00357147
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00357147