首页 | 本学科首页   官方微博 | 高级检索  
     检索      

气溶胶前向散射大气能见度测量系统传递系数的标定及校准方法
引用本文:王缅,刘文清,陆亦怀,陈军,程寅,连翠华,王亚萍,刘建国.气溶胶前向散射大气能见度测量系统传递系数的标定及校准方法[J].光学技术,2008,34(3).
作者姓名:王缅  刘文清  陆亦怀  陈军  程寅  连翠华  王亚萍  刘建国
基金项目:国家高技术研究发展计划(863计划)
摘    要:分析了气溶胶的前向角散射特性,利用标准的大气透射仪标定前向散射大气能见度测量系统的传递系数。当系统结构发生变化时,传递系数也随之改变,为保证系统测量的准确性和简化系统传递系数的标定过程,提出了一种利用标准漫透射板校准系统传递系数的方法。该方法使用了两块具有相同透射系数的漫透射板,使气溶胶粒子团在前向半球上产生漫散射,此时探测器的测量值即为包含了仪器常数的定值。当系统结构改变时,这个测量值相对于原测量值的变化率作为比例系数代入系统传递系数的计算,实现校准。

关 键 词:前向散射  大气能见度  大气消光系数  角散射  传递系数  标定  校准

Calibration and correction methods for the transform coefficients of the atmospheric visibility system by aerosol forward-scattering theory
WANG Mian,LIU Wen-qing,LU Yi-huai,CHEN Jun,CHENG Yin,LIAN Cui-hua,WANG Ya-ping,LIU Jian-guo.Calibration and correction methods for the transform coefficients of the atmospheric visibility system by aerosol forward-scattering theory[J].Optical Technique,2008,34(3).
Authors:WANG Mian  LIU Wen-qing  LU Yi-huai  CHEN Jun  CHENG Yin  LIAN Cui-hua  WANG Ya-ping  LIU Jian-guo
Abstract:The calibration system uses a standard transmissometer to calibrate the transform coefficients of the atmospheric visibility system by aerosol forward-scattering theory.When the structure of the visibility system changed,the transform coefficients may also changes.To guarantee the accuracy measurement and to simplify the calibration process of the visibility system,a correction method for the transform coefficients is presented.The correction system uses two diffusion boards with the same transmission coefficient to diffuse the light that passed the aerosols.The detector of visibility system measures the diffused light which consist the instrumental constant.When the structure of the visibility system changed,the percentage change of the diffused light as a ratio is multiplied by the original transform coefficients to correct the system transform coefficients.
Keywords:forward-scattering  atmospheric visibility  atmospheric extinction coefficient  angle scattering  transform coefficients  calibration  correction
本文献已被 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号