Correlation analysis on light scattering intensity distribution and mass concentration of atmospheric particles in different polarization states

Xingbo Wang; Heng Zhao; Ruofei Wang; Jiaqi Li

doi:10.1117/12.2683123

24 May 2023 Correlation analysis on light scattering intensity distribution and mass concentration of atmospheric particles in different polarization states

Xingbo Wang, Heng Zhao, Ruofei Wang, Jiaqi Li

Author Affiliations +

Proceedings Volume 12706, First International Conference on Spatial Atmospheric Marine Environmental Optics (SAME 2023); 1270613 (2023) https://doi.org/10.1117/12.2683123
Event: First International Conference on Spatial Atmospheric Marine Environmental Optics (SAME 2023), 2023, Shanghai, China

Abstract

The light scattering method has the advantages of simple structure and good real-time performance in measuring the mass concentration of particulate matter. It is usually used to calibrate the laboratory standard particles to ensure the accuracy of measurement. However, the actual measured particle size of pollutant particles is complex and changeable, it is necessary to explore the scattering light intensity distribution law in multi-detection angles under different particle sizes. The numerical simulation results obtain scattering light intensity distribution of silica particles under different polarization state light sources, and get the appropriate range of detection angle. This paper mainly designs a set of device to measure the scattering light intensity and mass concentration of particulate matter. Meanwhile, the standard instrument TSI was used to measure the real-time change of the mass concentration of particulate matter. The results show that the scattering light intensity signal measured by photodetector is highly correlated with the mass concentration measured by the TSI standard instrument, and the mass concentration of the particles measured by the system is in good agreement with the standard instrument TSI. The scattering light intensity can effectively invert the real-time mass concentration of particulate matter. The experimental device is suitable for real-time measurement of particulate matter mass concentration.

Citation Download Citation

Xingbo Wang, Heng Zhao, Ruofei Wang, and Jiaqi Li "Correlation analysis on light scattering intensity distribution and mass concentration of atmospheric particles in different polarization states", Proc. SPIE 12706, First International Conference on Spatial Atmospheric Marine Environmental Optics (SAME 2023), 1270613 (24 May 2023); https://doi.org/10.1117/12.2683123

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KEYWORDS

Particles

Atmospheric particles

Light scattering

Equipment

Polarization

Information operations

Scattered light

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