Design and Implementation of System of Measuring Aerosol Scattering Coefficient Based on Integral Turbidity Method

Abstract

Abstract:

Scattering coefficients of atmospheric aerosol is not only an indicator of atmospheric pollution, but also one of the important parameters of climate change. A method of aerosol scattering coefficient measurement based on integral turbidity as well as system design was proposed. The system design principle, hardware and software design and other aspects of the system design and implementation process were introduced respectively. To ensure the stability of the light source, constant current drive mode was used. Light scattering signals was detected by high speed single photon counting technology. Finally, linearity and stability of light source and accuracy of the detector were verified through experiment. Feasibility and reliability of the system were proved by comparing with a forward-scattering visibility sensor HW-N1.

Key words: aerosol, scattering coefficient, integral turbidity, system design

CLC Number:

TH744

TAN QI, LU Yi-Huai, LU Fan, GUI Hua-Qiao, LIU Jian-Guo. Design and Implementation of System of Measuring Aerosol Scattering Coefficient Based on Integral Turbidity Method[J]. Journal of Atmospheric and Environmental Optics, 2015, 10(5): 392-400.

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