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Electrophoretic and thermophoretic effects on conductometric soot sensing : special challenges when using synthetic soot

Title data

Hagen, Gunter ; Spannbauer, Christoph ; Moos, Ralf:
Electrophoretic and thermophoretic effects on conductometric soot sensing : special challenges when using synthetic soot.
In: 17th International Meeting on Chemical Sensors - IMCS 2018. - Wien , 2018 . - pp. 639-640
ISBN 978-3-9816876-9-9
DOI: https://doi.org/10.5162/IMCS2018/P1SM.1

Official URL: Volltext

Abstract in another language

Recently, particulate filters became an inevitable part not only in Diesel but even also in exhaust gas aftertreatment systems of gasoline driven engines. As the soot particles are significantly smaller in that case, for monitoring purposes or on-board-diagnostics improved soot sensors concerning sensitivity and response time are needed. Development of such devices could be supported by the use of soot generators in the lab. The present contribution tries to transfer findings in real Diesel exhaust to the behavior of conductometric soot sensors under test in synthetic soot atmosphere. The influence of applied voltage and sensor temperature on the electrophoretic and thermophoretic soot deposition was reproduced but could not be easily measured by the current signal because synthetic soot shows complex conductivity properties.

Further data

Item Type: Article in a book
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
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 Functional Materials
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: 23 Jul 2018 09:05
Last Modified: 23 Jul 2018 09:05
URI: https://eref.uni-bayreuth.de/id/eprint/45158