tdma: Tandem Differential Mobility Analyzer

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.


  • Fixed
  • AMF1
  • AMF2
  • AMF3

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Collins D. 2010. Tandem Differential Mobility Analyzer/Aerodynamic Particle Sizer (APS) Handbook. DOE/SC-ARM-TR-090.

Voyles JW. 2010. ARM Climate Research Facility Monthly Instrument Report. DOE ARM Climate Research Facility. DOE/SC-ARM-10-006.9.

Stolzenburg MR and PH McMurry. 2010. "Equations governing single and tandem DMA configurations and a new lognormal approximation to the transfer function." Aerosol Science and Technology, 42(6), 10.1080/02786820802157823.

Voyles JW. 2010. ARM Climate Research Facility Monthly Instrument Report. DOE ARM Climate Research Facility. DOE/SC-ARM-10-006.5.


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