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Soot Sensing : Modelling and Real Gas Test of a Capacitive Approach

Title data

Hagen, Gunter ; Werner, Robin ; Feulner, Markus ; Schubert, Michael ; Müller, Andreas ; Brüggemann, Dieter ; Moos, Ralf:
Soot Sensing : Modelling and Real Gas Test of a Capacitive Approach.
2016
Event: The 16th International Meeting on Chemical Sensors, IMCS 2016 , 10th - 13th July 2016 , Jeju, Korea.
(Conference item: Conference , Poster )

Abstract in another language

On-board-diagnostics (OBD) of exhaust gas aftertreatment systems comprising particle filters requires highly sensitive soot sensors. We present a capacitive approach. For that purpose, we covered the planar interdigital Pt-electrodes of a resistive device by a thin but dense insulating alumina layer utilizing the novel aerosol-deposition method (ADM). Now, the capacitance – evaluated as the sensor signal – should change even before the whole region is covered by conductive soot because the electrical field distribution in the gap between the electrodes changes. We proved this theory by FEM-based simulations (COMSOL Multiphysics) as well as by real gas measurements.

Further data

Item Type: Conference item (Poster)
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Engineering Thermodynamics and Transport Processes > Chair Engineering Thermodynamics and Transport Processes - Univ.-Prof. Dr.-Ing. Dieter Brüggemann
Faculties > Faculty of Engineering Science > Chair Functional Materials
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Research Institutions > Research Units > ZET - Zentrum für Energietechnik
Research Institutions > Research Units > BERC - Bayreuth Engine Research Center
Faculties
Faculties > Faculty of Engineering Science > Chair Engineering Thermodynamics and Transport Processes
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Units
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 25 Jul 2016 11:22
Last Modified: 15 Feb 2019 10:08
URI: https://eref.uni-bayreuth.de/id/eprint/33637