Measurement of triboelectric charging of moving micro particles by means of an inductive cylindrical probe
| Autor: | Volker Lindenstruth, Klaus Leibe, Alexander Nesterov, Kai König, Frank Breitling, Thomas Felgenhauer, Felix Löffler, Volker Stadler, F. R. Bischoff, Michael Hausmann, U. Trunk |
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| Rok vydání: | 2007 |
| Předmět: |
Materials science
Acoustics and Ultrasonics business.industry Analytical chemistry Condensed Matter Physics Electric charge Charged particle Surfaces Coatings and Films Electronic Optical and Magnetic Materials Time of flight Optics Phenomenological model Calibration Particle Tube (fluid conveyance) business Triboelectric effect |
| Zdroj: | Journal of Physics D: Applied Physics. 40:6115-6120 |
| ISSN: | 1361-6463 0022-3727 |
| DOI: | 10.1088/0022-3727/40/19/053 |
| Popis: | We present a method based on induced currents in a cylindrical probe which allows analysis of the micro-particle charging processes in an aerosol. The micro particles were triboelectrically charged by passing through a dielectric tube coaxially mounted into the probe. The cylindrical probe enabled the quantification of particle charging without prior calibration of the probe. An analytic model was developed for the description of the measured induced currents and implemented into a computer simulation program. The combination of model simulations and an appropriate experimental setup revealed comprehensive data for the determination of the particles' electric charge against time of flight through the tube. In methodological proof of principle experiments, the formations of particle clouds with charges of different signs were observed using magnetite micro particles. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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