A novel measurement of droplet concentration from angular distribution of elastic light scattering and absorption

Qi Pan; Zijia Zhang; Haixiu Chen

doi:10.1117/12.2543280

12 March 2020 A novel measurement of droplet concentration from angular distribution of elastic light scattering and absorption

Qi Pan, Zijia Zhang, Haixiu Chen

Author Affiliations +

Proceedings Volume 11434, 2019 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments; 114340N (2020) https://doi.org/10.1117/12.2543280
Event: 2019 International Conference on Optical Instruments and Technology, 2019, Beijing, China

Abstract

A novel method of droplet concentration measurement is presented based on analysis of angular distribution of elastic light scattering patterns, which provide a possible way to get the information of complex refractive index and inverse the liquid concentration for both absorbing and non-absorbing solutions. A mathematical model is established and an inverse algorithm corresponding to this model is also proposed which calculates the complex refractive index accurately. Experiments were carried out on both absorbing dye solutions and non-absorbing ethanol solutions with different concentrations. The results show a good agreement with the theoretical analysis and prove the potential use of this method.

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Qi Pan, Zijia Zhang, and Haixiu Chen "A novel measurement of droplet concentration from angular distribution of elastic light scattering and absorption", Proc. SPIE 11434, 2019 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 114340N (12 March 2020); https://doi.org/10.1117/12.2543280

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