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Principle of Operation The Scanning Mobility Particle Sizer is based on the principal of the mobility of a charged particle in an electric field. Particles entering the system are neutralized (using a radioactive source) such that they have a Fuchs equilibrium charge distribution. Scanning Mobility Particle Sizer (SMPS) Centre for Atmospheric Science http://.cas.manchester.ac.uk › instruments › aerosol Centre for Atmospheric Science http://.cas.manchester.ac.uk › instruments › aerosol

The SMPS uses a bipolar aerosol charger to keep particles within a known charge distribution. Charged particles are classified ing to their electrical mobility, using a long-column differential mobility analyzer (DMA). Particle concentration is measured with a condensation particle counter (CPC).

Laser diffraction measures particle size distributions by measuring the angular variation in intensity of light scattered as a laser beam passes through a dispersed particulate sample. Large particles scatter light at small angles relative to the laser beam and small particles scatter light at large angles. Laser Diffraction (LD) - Malvern Panalytical malvernpanalytical.com https://.malvernpanalytical.com › light-scattering › l... malvernpanalytical.com https://.malvernpanalytical.com › light-scattering › l...

The Model 3936 Scanning Mobility Particle Spectrometer (SMPS) measures the size distribution of aerosols ranging from 10 nm up to 1000 nm. The SMPS uses a bipolar aerosol charger to keep particles within a known charge distribution. Scanning Mobility Particle Spectrometer Instrument Handbook Atmospheric Radiation Measurement (.gov) https://.arm.gov › smps_handbook Atmospheric Radiation Measurement (.gov) https://.arm.gov › smps_handbook PDF

The Scanning Mobility Particle Sizer (SMPS™) spectrometer is a nanoparticle sizer capable of measuring the size distribution of airborne submicron particles with accuracy and precision. It combines electrical mobility sizing with single-particle counting to deliver nanoparticle concentrations in discrete size channels.

Mobility particle size spectrometers are instruments capable of determining sub-micrometer particle number size distributions. Their fundamental principle is the separation of particles in an electric field, based on different electrical mobilities.

The differential mobility analyzer (DMA) is a powerful instrument that continuously separates aerosol particles ing to their migration velocities in an electric field with high resolution. Because of the low fields employed, the mobility can be related to particle size or ion cross section.

The Scanning Mobility Particle Sizer (SMPS™) spectrometer is a nanoparticle sizer capable of measuring the size distribution of airborne submicron particles with accuracy and precision. It combines electrical mobility sizing with single-particle counting to deliver nanoparticle concentrations in discrete size channels. General Scanning Mobility Particle Sizer (SMPS) 3938 - TSI TSI https://tsi.com › products › general-scanning-mobilit... TSI https://tsi.com › products › general-scanning-mobilit...