White-light optical particle spectrometer for in situ measurements of condensational growth of aerosol particles.
White-light optical particle spectrometer for in situ measurements of condensational growth of aerosol particles.
复制标题
白光光学粒子光谱仪，用于原位测量气溶胶粒子的凝结生长。
DOI：
10.1364/ao.44.004693
复制
发表时间：
2005
期刊：
影响因子：
1.9
通讯作者：
Dmitry Karpushenko
中科院分区：
文献类型：
--
作者：
A. Kiselev;H. Wex;F. Stratmann;A. Nadeev;Dmitry Karpushenko
开发了一种新的光学粒子计数器，用于在莱比锡气溶胶和云相互作用模拟器(LAIS)中提供云滴的快速现场测量。新仪器采用白光照明采样体积；两个离轴椭圆镜，为粒子散射的光提供宽角度收集；以及光学定义的采样体积。水滴的平稳、明确的响应特性允许将测量的信号幅度直接转换为水滴直径。对生长在LaCI中的干燥聚苯乙烯微球和水滴在氯化钠颗粒上的初步响应测量表明，与相应的计算响应曲线符合良好。
A new optical particle counter was developed to provide fast in situ sizing of cloud droplets in the Leipzig Aerosol and Cloud Interaction Simulator (LACIS). The new instrument features white light for the illumination of the sampling volume: two off-axis elliptical mirrors, providing a wide angle of collection for light scattered by particles; and an optically defined sampling volume. The smooth unambiguous response characteristic for water droplets allows direct conversion of the measured signal amplitudes into droplet diameters. Preliminary response measurements for dry polystyrol microspheres and water droplets, grown in the LACIS on NaCl particles, have shown good agreement with the corresponding calculated response curves.