Influence of key parameters on the response of a resistive soot sensor

Didier Grondin (1, 2, 3) , Alexandre Westermann (4) , Philippe Breuil (1, 2, 3) , Jean-Paul Viricelle (1, 2, 3) , Philippe Vernoux (4)

1 LGF-ENSMSE - Laboratoire Georges Friedel
2 SPIN-ENSMSE - Centre Sciences des Processus Industriels et Naturels
3 PRESSIC-ENSMSE - Procédés et REactivité des Systèmes Solide-gaz, Instrumentation et Capteurs
4 IRCELYON - Institut de recherches sur la catalyse et l'environnement de Lyon

This paper is a comprehensive study dealing with the parameters that influence the response of a resistive soot sensor which was developed for Diesel Particulate Filter (DPF) failure detection in a past project. From the conductance measurement between two Pt electrodes, and a regeneration strategy, this kind of sensor can provide the weight concentration of particulate matter (PM). In this study, we have characterized and determined the key parameters such as the PM distribution size and the polarization voltage between the electrodes that could influence the sensor response. First results show that the sensor response strongly depends on the polarization voltage applied between the two electrodes.

Mots clés: Soot sensor; Resistive sensor; Particle Matter; On-Board diagnosis (OBD); Diesel particulate filter monitoring

Domaines: Génie des procédés

Didier Grondin, Alexandre Westermann, Philippe Breuil, Jean-Paul Viricelle, Philippe Vernoux. Influence of key parameters on the response of a resistive soot sensor . Sensors and Actuators B: Chemical, 2016, 236, pp.1036-1043. ⟨10.1016/j.snb.2016.05.049⟩. ⟨hal-01316634⟩