大气与环境光学学报 ›› 2012, Vol. ›› Issue (5): 370-375.

• 光电技术 • 上一篇    下一篇

基于LED光源的积分浊度仪的系统设计

吴玉笛,刘建国,陆钒,桂华侨,王亚平   

  1. ( 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:2012-04-28 修回日期:2012-05-03 发布日期:2012-10-21
  • 通讯作者: 吴玉笛(1987-),女,汉族,安徽省合肥市人,研究生,主要研究方向为环境光学监测技术。 E-mail:ydwu@aiofm.ac.cn
  • 作者简介:吴玉笛(1987-),女,汉族,安徽省合肥市人,研究生,主要研究方向为环境光学监测技术。
  • 基金资助:

    国家自然科学基金(60908035)资助

System Design for Integrating Nephelometer Based on LED Light Source

WU Yu-di, LIU Jian-guo, LU Fan, GUI Hua-qiao, WANG Ya-ping   

  1. (Key Laboratory of Environment Optical and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China)
  • Received:2012-04-28 Revised:2012-05-03 Online:2012-10-21

摘要:

散射系数是气溶胶光学性质的重要参数之一。为了研究气溶胶光学性质,研制了一种用于测量散射系数的积分浊度仪。介绍了该仪器的工作原理、系统结构设计,对该仪器中最为重要的光学测量腔室和光源给出了最优的设计方案。该仪器与前向散射型能见度仪对比实验结果显示散射系数与能见度的相关系数为0.834,证明了本仪器的可靠性。本仪器光源稳定,整体系统结构简单,成本低廉,有广阔的应用前景。

关键词: 气溶胶, 积分浊度仪, 散射系数, 系统设计, LED

Abstract:

Scattering coefficient is one of the most important parameters of the aerosol optical properties. A kind of integrating nephelometer for measuring scattering coefficient is developed in order to investigate the aerosol optical properties. Principles and the system design of the system are presented, the optimal design of the optical chamber and the light source are proposed. Experimental results show that the correlation coefficient between scattering coefficient measured by the nephelometer and visibility measured by the forward-scattering visibility sensor was 0.834. It illustrates that the system is compact, low cost and reliable.

Key words: aerosol, integrating nephelometer, scattering coefficient, system design, LED

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