SMPS(Scanning Mobility Particle Sizer)扫描电迁移率粒径谱仪在线分析气溶胶颗粒物粒径分布,扫描范围2.5~8.5nm,0.01~0.5μm构成及测量技术:静电分级器(EC),超细凝结核粒子计数器(CPC),微分迁移率分析仪(DMA)路径及原理如下: