Journal
AEROSOL SCIENCE AND TECHNOLOGY
Volume 48, Issue 4, Pages 350-357Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/02786826.2013.875981
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We introduce a new electrical measurement technique for aerosol detection, based on pulsed unipolar charging followed by a non-contact measurement of the rate of change of the aerosol space charge in a Faraday cage. This technique, which we call aerosol measurement with induced currents, has some advantages compared to the traditional method of collecting the charged particles on either an electrode or with a particle filter. We describe the method and illustrate it with a simple and miniature (shirt-pocket-sized) instrument to measure lung-deposited surface area. Aerosol measurement by induced currents can also be applied to more complex devices. Copyright 2014 American Association for Aerosol Research
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