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Modelling of a Temperature Modulated Thermoelectric Hydrocarbon Gas Sensor

Title data

Ritter, Thomas ; Wiegärtner, Sven ; Hagen, Gunter ; Moos, Ralf:
Modelling of a Temperature Modulated Thermoelectric Hydrocarbon Gas Sensor.
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

The hydrocarbon (HC) concentration (for example in automotive exhausts) can be measured by a thermoelectric sensor. A thermopile structure on a ceramic substrate enables to measure a temperature difference between a catalyst-coated and an inert area on the sensor surface. The voltage signal correlates linearly with the HC concentration due to the exothermicity on the catalytic activated area. Temperature modulation of the overall sensor temperature enables to characterize the catalyst material or even to distinguish between different HCs as the catalysts’ conversion behavior depends differently on temperature. Modelling of the whole sensing principle by coupling the dominating physical effects allows to simulate the chemical mechanisms in the thin catalytic layer. Now, precise predictions are possible to enhance the sensor performance.

Further data

Item Type: Conference item (Poster)
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
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
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 11:20
Last Modified: 25 Jul 2016 11:20
URI: https://eref.uni-bayreuth.de/id/eprint/33636