Particle size distributions in the ultrafine region: U-SMPS system

Determination of the particle size distribution of ultrafine aerosols from 4 nm to 1.2 µm

The U-SMPS series comprises a DEMC particle classifier, with which a monodisperse particle fraction is obtained from a polydisperse aerosol, depending on the applied voltage. The number concentration is determined with a particle counter. Prof. Wiedensohler (IfT Leipzig, Germany) developed the algorithm used by Palas® for inversion of the measured data to yield the particle size distribution. 

The U-SMPS is able to measure concentrations of up to 108 particles/cm3. The U-SMPS is equipped with a continuous and fast-scanning principle of measurement and scans both up and down. Palas® is the first manufacturer in the world to develop and incorporate this up-and-down scan mode. The U-SMPS universally supports DMAs, CPCs, and aerosol electrometers from other manufacturers. It is able to be connected to other computers or networks using various interfaces (USB, LAN, WLAN, RS-232/485).
The U-SMPS is successfully used in practice due to its special advantages.




U-SMPS 1050 / 1100 / 1200

U-SMPS 1X00_frontal_freigestellt.jpg

U-SMPS 1700

U-SMPS 1700

U-SMPS 2050 / 2100 / 2200

U-SMPS 2050_2100_2200 - Scannendes Partikelmobilitätsklassiersystem

U-SMPS 2700

U-SMPS 2700_freigestellt.jpg