摘要
本文分析了光电粒子计数器测量结果对气溶胶折射指数的敏感度,讨论了它测量的粒子谱分布与折射指数虚部n_i的相关关系。根据光电粒子计数器测量的粒子谱分布对n_i敏感的特点,利用光电粒子计数器和太阳辐射计同时测量的结果,可以确定气溶胶的n_i。实际测量的n_i值与积分片方法测量结果对比表明,这个方法是令人满意的。
This paper analyses the sensitivity of an optical particle counter ( OPC) measurement to the refractive index of partic les, and discusses the dependance of aerosol size distributions measured by an OPC on ni, the imaginary part of the refractive index. By use of the high sensitivity of OPC measurements to ni, values of ni can be deduced from simultaneous measurements by an OPC and a solar radiometer. Compared with those obtained by the integrating plate method, the results of the experiment are satisfactory.
出处
《大气科学》
CSCD
北大核心
1991年第5期18-24,共7页
Chinese Journal of Atmospheric Sciences
关键词
汽溶胶
折射
指数
计数器
光电粒子
Aerosol
Refractive index
Optical particle counter.
