YSZ Thick Film Oxygen Gas Sensor Using the Direct Ionic Thermoelectric Effect

Titelangaben

Röder-Roith, Ulla ; Rettig, Frank ; Sahner, Kathy ; Röder, Timo ; Janek, Jürgen ; Moos, Ralf:
YSZ Thick Film Oxygen Gas Sensor Using the Direct Ionic Thermoelectric Effect.
In: Proceedings SENSOR 2009. - Wunstorf : AMA Verband für Sensorik und Messtechnik e.V. , 2009 . - S. 129-132
ISBN 978-3-9810993-5-5
DOI: https://doi.org/10.5162/sensor09/v2/b7.4

Volltext

Link zum Volltext (externe URL):

Weitere URLs

Abstract

The introduced thick-film sensor determines the oxygen partial pressure by measuring the thermopower over an oxygen ion conductor. The measurand is a voltage, which means that the sensor signal is independent on geometry. That is advantageous for long-term stability because the influence of aging effects like cracks or sintering is low. Another advantage of this method compared to the measuring of a Nernst voltage (e.g. in a λ-probe) is that no reference atmosphere is needed. So, the sensor setup can be designed easier.