Sedimentation Chamber - Characterize polydisperse Aerosols in a Minute
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Sedimentation Chamber: first particle measurement system that determines aerodynamic diameter of polydisperse aerosols via sedimentation.
Usage
Inhaler technology:
- Ultra light particle analysis
- Dry powder inhalers
- Metered dose inhalers
- Nebulisers
- Aerosol Research
Characterization of test dust and test aerosols
Benefits
- Measures the decisive characteristics of aerosols: the aerodynamic diameter
- Determination of aerodynamic equivalent diameter
- Designed for polydisperse aerosols
- Particle range: 0.5 - 10 µm
- High specificity: +- 0.1 µm
- Statistically analysed results in few minutes
- Concentration up to 6 x 10.000 /cm³
Why should Particle Size be measured by Sedimentation?
Particle size analysis over sedimentation allows to measure the aerodynamic equivalent diameter of polydisperse aerosols. The principle of measuring particle size over sedimentation is well known since 1975 (Stahlhofen, W., Armbruster, L., Gebhart, J. and Grein, E.: Particle sizing of aerosols by single particle observation in a sedimentation cell. Atmos. Environ. 9, S. 851-857).
However, this method has not been employed as a standard, since intensive data processing is required and former computer systems were insufficient. Modern data acquisition makes it now possible to introduce a particle size measurement system for polydisperse aersosols.