Inversion algorithm on rainbow measurement in gas-liquid flow

Qi Pan; Shimin Wang

doi:10.1117/12.839230

27 August 2009 Inversion algorithm on rainbow measurement in gas-liquid flow

Qi Pan, Shimin Wang

Proceedings Volume 7375, ICEM 2008: International Conference on Experimental Mechanics 2008; 73752T (2009) https://doi.org/10.1117/12.839230
Event: International Conference on Experimental Mechanics 2008 and Seventh Asian Conference on Experimental Mechanics, 2008, Nanjing, China

Abstract

A inverse algorithm of rainbow detection was presented that permits one to get simultaneously the refractive index and size of droplet under low Signal-to-Noise Ratio (SNR) condition. The noise was removed based on Empirical Mode Decomposition (EMD) and feature points extraction technique. The parameters inversed according to a new built mathematic model and Debye theory. A numerical test and an experiment were taken to validate the algorithm. It is showed that the method greatly improves the accuracy of parameter inversion.

Citation Download Citation

Qi Pan and Shimin Wang "Inversion algorithm on rainbow measurement in gas-liquid flow", Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 73752T (27 August 2009); https://doi.org/10.1117/12.839230

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