Sensors 2010, 10(3), 1589-1598; doi:10.3390/s100301589
Article

Conductometric Soot Sensor for Automotive Exhausts: Initial Studies

1,* email, 1, 1, 1,2, 2email and 1email
Received: 14 January 2010; in revised form: 3 February 2010 / Accepted: 22 February 2010 / Published: 1 March 2010
(This article belongs to the Section Physical Sensors)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: In order to reduce the tailpipe particulate matter emissions of Diesel engines, Diesel particulate filters (DPFs) are commonly used. Initial studies using a conductometric soot sensor to monitor their filtering efficiency, i.e., to detect a malfunction of the DPF, are presented. The sensors consist of a planar substrate equipped with electrodes on one side and with a heater on the other. It is shown that at constant speed-load points, the time until soot percolation occurs or the resistance itself are reproducible means that can be well correlated with the filtering efficiency of a DPF. It is suggested to use such a sensor setup for the detection of a DPF malfunction.
Keywords: on-board diagnosis (OBD); diesel particulate filter (DPF); emission legislation; diesel particulate matter (PM)
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MDPI and ACS Style

Hagen, G.; Feistkorn, C.; Wiegärtner, S.; Heinrich, A.; Brüggemann, D.; Moos, R. Conductometric Soot Sensor for Automotive Exhausts: Initial Studies. Sensors 2010, 10, 1589-1598.

AMA Style

Hagen G, Feistkorn C, Wiegärtner S, Heinrich A, Brüggemann D, Moos R. Conductometric Soot Sensor for Automotive Exhausts: Initial Studies. Sensors. 2010; 10(3):1589-1598.

Chicago/Turabian Style

Hagen, Gunter; Feistkorn, Constanze; Wiegärtner, Sven; Heinrich, Andreas; Brüggemann, Dieter; Moos, Ralf. 2010. "Conductometric Soot Sensor for Automotive Exhausts: Initial Studies." Sensors 10, no. 3: 1589-1598.

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