Literatur vom gleichen Autor/der gleichen Autor*in
plus bei Google Scholar

Bibliografische Daten exportieren
 

Direct thermoelectric hydrocarbon gas sensors based on SnO2

Titelangaben

Rettig, Frank ; Moos, Ralf:
Direct thermoelectric hydrocarbon gas sensors based on SnO2.
In: IEEE Sensors Journal. Bd. 7 (2007) . - S. 1490-1496.
ISSN 1530-437X
DOI: https://doi.org/10.1109/JSEN.2007.906887

Volltext

Link zum Volltext (externe URL): Volltext

Abstract

Direct thermoelectric gas sensors offer a promising measurement principle. Similar to the conductivity, the measurand Seebeck coefficient depends on the ambient gas atmosphere. Moreover, and unlike the conductivity, it is independent from the geometry of the gas sensitive film. This behavior is clearly demonstrated in a comparison of a fresh sensor and a sensor that was deliberately milled out. As an exemplary material for a gas sensitive film, tin dioxide was chosen. Direct thermoelectric gas sensors, therefore, promise better long-term stability, since in contrast to conductometric sensors aging phenomena-like cracks and abrasions do not affect the Seebeck coefficient.
Thermoelectric gas sensors are difficult to measure, not only because a voltage and a temperature difference have to be measured, but also with respect to problems that occur, if one measures small thermovoltages on high-ohmic films. Hence, we optimized the design of the direct thermoelectric gas-sensing device, with special respect to low internal film resistances. The result of this optimization is a thermoelectric gas sensor with an accuracy comparable to conductometric gas sensors.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Institutionen der Universität: Fakultäten > Fakultät für Ingenieurwissenschaften
Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Funktionsmaterialien > Lehrstuhl Funktionsmaterialien - Univ.-Prof. Dr.-Ing. Ralf Moos
Fakultäten
Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Funktionsmaterialien
Profilfelder > Advanced Fields > Neue Materialien
Forschungseinrichtungen > Forschungszentren > Bayreuther Materialzentrum - BayMAT
Profilfelder
Profilfelder > Advanced Fields
Forschungseinrichtungen
Forschungseinrichtungen > Forschungszentren
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Eingestellt am: 26 Jan 2015 08:06
Letzte Änderung: 06 Apr 2016 08:19
URI: https://eref.uni-bayreuth.de/id/eprint/5990