In Situ Aerosol Instruments
Aerodyne Aerosol Time of Flight Mass Spectrometer (TOF-AMS)
The Aerodyne Aerosol Time of Flight Mass Spectrometer (TOF-AMS) is an instrument manufactured by Aerodyne Research Inc. and is used to study the chemical and physical nature of aerosol particles online.
Differential Mobility Particle Sizer
The Differential Mobility Particle Sizer (DMPS) is an instrument designed to measure aerosol size spectra down to very small sizes. The UMIST DMPS currently measures particles from 3.5nm to about 470nm.
Scanning Mobility Particle Sizer
The Scanning Mobility Particle Sizer is based on the principal of the mobility of a charged particle in an electric field and can produce aerosol spectra with a much higher temporal resolution than the DMPS, though the sampling statistics suffer.
Condensation Particle Counters
Standard optical particle counters are not able to measure particles much below 50nm. To count smaller particles still Condensation Particle Counters are used, and can count all particles down to 2nm (depending on specific model).
Hygroscopic Tandem Differential Mobility Analyser
The Hygroscopic Tandem Differential Mobility Analyser (HTDMA) is designed to measure size resolved aerosol hygroscopic properties, ie how an aerosol distribution responds to a change in relative humidity.
Single Particle Soot Photometer
Manufactured by Droplet Measurement Technologies (DMT) the Single Particle Soot Photometer (SP2) is a new instrument for measurement of soot content in individual airborne particles.