An optical technique based on laser induced fluorescent emission has been developed for time-resolved measurements of liquid film thickness. Motivation for this work was the problem of accurately determining film behavior on the tip of airblast atomizers used in gas turbine engines. Theory, system design, and experimental data are presented.

Topics
Combustion engine, Optical metrology, Thin films
1.
Lefebvre
,
A. H.
, “
Airblast Atomization
,”
Progress in Energy and Combustion Science
, Vol.
6
, No.
3
, pp.
233
–
61
(
1980
).
https://doi.org/10.1016/0360-1285(80)90017-9
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2.
Schmitt
,
R. L.
, “
Optical Measurement of Liquid Film Thickness in Airblast Atomizers
”, M.S Thesis,
Purdue University
, December,
1980
.
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© 1982 Laser Institute of America.
1982
Laser Institute of America
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