AOS: Scanning-Mobility Particle Sizer - aossmps

The scanning mobility particle sizer (SMPS) is a particle size spectrometer that measures the aerosol number size distribution by sizing particles based on their electrical mobility diameter using a differential mobility analyzer (DMA) and by counting particles using a condensation particle counter (CPC). It measures aerosol concentration and aerosol particle size distribution. \n \nThe SMPS can measure the aerosol number size distribution in the particle diameter range from 10 to 500 nanometers (Regular SMPS) and from 2 to 150 nanometers (Nano SMPS). \n \nThe SMPS is part of the aerosol observing system (AOS).扫描迁移率粒度仪（scanning mobility particle sizer，SMPS）是一种颗粒物粒径光谱仪，其通过差分迁移率分析仪（differential mobility analyzer，DMA）基于粒子的电迁移直径完成粒径分级，并借助凝结核粒子计数器（condensation particle counter，CPC）实现粒子计数，以此测定气溶胶的数浓度粒径分布，同时可测量气溶胶浓度与气溶胶颗粒物的粒径分布。 常规扫描迁移率粒度仪（Regular SMPS）可在10~500纳米的粒径范围内测定气溶胶数浓度粒径分布，纳米型扫描迁移率粒度仪（Nano SMPS）的测定范围则为2~150纳米。 扫描迁移率粒度仪属于气溶胶观测系统（aerosol observing system，AOS）的组成部分。