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).

扫描迁移率粒径谱仪（scanning mobility particle sizer, SMPS）是一种粒径光谱仪，它通过差分迁移率分析仪（differential mobility analyzer, DMA）基于粒子的电动迁移直径对颗粒物进行粒径分级，并借助凝聚核粒子计数器（condensation particle counter, CPC）对粒子进行计数，以此测定气溶胶粒数粒径分布。该仪器可同时测量气溶胶浓度与气溶胶粒径分布。

常规扫描迁移率粒径谱仪（Regular SMPS）的测量粒径范围为10至500纳米，纳米型扫描迁移率粒径谱仪（Nano SMPS）的测量粒径范围则为2至150纳米。

扫描迁移率粒径谱仪属于气溶胶观测系统（aerosol observing system, AOS）的组成部分。