Dynamic measurement of particle size distributions by an electrical diffusion battery

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作者
Burtscher, H. [1 ]
Scherrer, L. [2 ]
Siegmann, H.C. [2 ]
机构
[1] Fachhochschule Aargau, University of Applied Science, CH-5210 Windisch, Switzerland
[2] Laboratory for Solid State Physics, ETH-Hoenggerberg, CH 8093 Zürich, Switzerland
关键词
Electric charge - Internal combustion engines - Nucleation - Particle size analysis - Particulate emissions - Photoemission - Ultraviolet radiation;
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摘要
The dynamic measurement of particle emissions from combustion engines by an electrical diffusion battery is performed. Diffusion batteries (DB) classify the particles according to their mobility. The measurement of input and output concentration measures the penetration of the DB. There is another type of diffusion battery which directly measures the particles precipitated in the different stages of DB, and thus provides the size spectrum. A backup filter is also provided to collect the particles penetrating all stages of the DB. It is also possible to charge the particles by ultra-violet photoemission.
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