Absorption correction of two-color LII-signals
نویسندگان
چکیده
In this work we present a numerical iterative procedure for the evaluation of the effect of signal absorption in two-color laser-induced incandescence (2C-LII) measurements. The correction process is applied to experimental results, previously published by our group, in an axisymmetric diffusion flame. We have studied the influence of signal trapping on peak soot temperature and on soot volume fraction determination. The influence was found to be minimal for the investigated flame. Some numerical tests were also performed in order to investigate the effects of soot concentration, flame size and soot refractive index on the magnitude of the corrections due to signal absorption.
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