Instrument : Tandem Differential Mobility Analyzer (TDMA)

Instrument Categories
Aerosols

Picture of the Tandem Differential Mobility Analyzer (TDMA)
Picture of the Tandem Differential Mobility Analyzer (TDMA)

General Overview

The Tandem Differential Mobility Analyzer (TDMA) measures aerosol dry-size distribution and size-resolved hygroscopic growth. In its standard operating mode, dry aerosols are separated into size bins by the first differential mobility analyzer and then exposed to 85% relative humidity. The resulting hygroscopic growth distributions are then scanned by the second differential mobility analyzer for each dry-size bin.

Output Datastreams

  • tdmaapssize : Tandem Differential Mobility Analyzer Aerosol Particle Sizer
  • tdmahyg : Tandem Differential Mobility Analyzer: hygroscopic growth rates
  • tdmasize : Tandem Differential Mobility Analyzer: size-resolved concentrations

Primary Measurements

The following measurements are those considered scientifically relevant.

Locations

Southern Great Plains
SGPC1Browse DataCentral Facility, Lamont, OK

Contact(s)

Don Collins
(979) 862-4401
dcollins@tamu.edu