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Resistance Sensor Based on Thermophoresis for Soot in Diesel Exhaust
Published online by Cambridge University Press: 01 February 2011
Abstract
A resistance sensor for use in diesel exhaust is reported. Several soot deposition mechanisms contribute to collection on the sensing electrodes. The sensor is designed to enhance the temperature difference between the electrode surface and the ambient. The resulting thermophoretic force on nanoparticles enhances soot deposition. Exhaust soot concentrations were shown to correlate with resistance decreases and the effect of thermophoresis was studied.
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- Copyright © Materials Research Society 2010
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