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An electret volatile organic chemical and particulate sensor

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2 Author(s)
Klein, C.F. ; Johnson Controls Inc., Milwaukee, WI, USA ; Thoma, P.E.

The use of an electret as a volatile organic chemical and particulate sensor is proposed, along with a mechanism to sense polar gases, particles, and droplets. The electret detects changes in the concentration of volatile organic chemicals and particulates, which are constituents of the combustion process, as a result of dipole-charge and induced dipole-charge interactions between the negative charge in the electret's polymer layer and the combustion products.<>

Published in:

Components, Hybrids, and Manufacturing Technology, IEEE Transactions on  (Volume:11 ,  Issue: 3 )