基于积分浊度法测量气溶胶散射系数的系统设计与实现

大气与环境光学学报 ›› 2015, Vol. 10 ›› Issue (5): 392-400.

基于积分浊度法测量气溶胶散射系数的系统设计与实现

檀奇,　陆亦怀,　陆钒,　桂华侨, 刘建国

（中国科学院安徽光学精密机械研究所中国科学院环境光学与技术重点实验室,　安徽　合肥　230031）

收稿日期:2014-03-27 修回日期:2014-04-10 出版日期:2015-09-28 发布日期:2015-09-11
通讯作者: 檀奇 (1989-),安徽怀宁人，硕士研究生，主要研究方向为光电信号检测。 E-mail:qtan@aiofm.ac.cn
作者简介:檀奇 (1989-),安徽怀宁人，硕士研究生，主要研究方向为光电信号检测。
基金资助:
中国科学院战略性先导科技专项（B类）（XDB05040400）资助

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

TAN Qi, LU Yihuai, LU Fan, GUI Huaqiao, LIU Jianguo

(Key Laboratory of Environment Optical and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China)

Received:2014-03-27 Revised:2014-04-10 Published:2015-09-28 Online:2015-09-11

摘要/Abstract

摘要：

大气气溶胶散射系数不仅是反映大气污染程度的指标，也是研究气候变化的重要参数之一。介绍了一种基于积分浊度法测量大气气溶胶散射系数的方法及系统设计。分别从系统原理、硬件设计和软件设计等方面介绍系统设计实现过程；采用恒流驱动方式保证光源稳定发光，高速单光子计数方式对散射光信号进行探测。最后通过实验验证了系统光源的线性、稳定性和探测器的准确性，并给出了与HW-N1型前向散射式能见度仪测量结果的对比，得出系统的设计是可行和可靠的结论。

关键词: 气溶胶, 散射系数, 积分浊度, 系统设计

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

中图分类号:

TH744

檀奇陆亦怀陆钒桂华侨刘建国. 基于积分浊度法测量气溶胶散射系数的系统设计与实现[J]. 大气与环境光学学报, 2015, 10(5): 392-400.

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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