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Data Merge Software Module

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Size distributions of airborne particles often span a wide size range from a few nm to several µm, which typically exceeds the measurement size range of any one instrument. The Model 390069 Data Merge Software module* offers a consistent method of merging and fitting data files from two well-known TSI aerosol instruments to produce wide-range particle size distribution curves for analysis. The Scanning Mobility Particle Sizer™ (SMPS™) spectrometer is the standard for measuring submicrometer particles, while the Aerodynamic Particle Sizer® (APS™) spectrometer is the most accurate sizer for coarse particles. The advantage of combining these two measurement techniques is that they are related and, unlike optical methods, they require no knowledge of refractive index.

Multimodal distribution functions can be fitted to the data, covering all three modes of particles found in the atmosphere, namely nuclei-, accumulation-, and coarse-mode aerosols. The software is designed to work with a variety of SMPS spectrometers (Model 3034 and Series 3934/3936) and APS spectrometers (Models 3310, 3310A, 3320, and 3321). The instruments may use any version of TSI Aerosol Instrument Manager® software. As a result, wide-range particle size distributions from 0.0025 to 20 µm can be created, with the lower limit determined by the SMPS configuration.

*Developed under agreement with Chimera Technologies, Inc.
Features and Benefits  
  • Merges separate SMPS and APS data files into one comprehensive data set
  • Creates wide-range particle size distributions from 0.0025 to 20 µm
  • Fits a set of data to unimodal, bimodal, or trimodal distribution functions
  • Easy to use
  • Flexible data management options
  • Atmospheric aerosol research
  • Ambient air monitoring
  • Correlation to PM2.5 or PM10 
  • Indoor air quality and source studies
  • Stack and boiler emission measurements
  • Combustion research
  • Inhalation or exposure-chamber studies
  • Particle emissions from biomass combustion
  • Characterization of particle control technologies

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