Laser beam attenuation in LIF measurements on NO in a diesel engine

K. Verbiezen, A.J. Donkerbroek, A.P. Vliet, van, W.L. Meerts, R.J.H. Klein-Douwel, N.J. Dam, J.J. Meulen, ter

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Abstract

The effect of laser beam attenuation on nitric oxide measurements in a diesel engine is presented. A number ofexperimental ways to correct for this attenuation are discussed: transmission measurements, bidirectional laserinducedfluorescence, and Raman scattering by N2. Comparison of the results indicates that the attenuation isgenerally not uniform over the cylinder. Instead it seems to be less severe over the field of view (i.e. the upper partof the cylinder).
Original languageEnglish
Title of host publicationProceedings of the European Combustion Meeting 2003, Orleans
Pagespaper 88-1/6
Publication statusPublished - 2003

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