Journal of Sensors and Sensor Systems
Journal of Sensors and Sensor Systems
JSSS
Articles | Volume 9, issue 2
Articles | Volume 9, issue 2
https://doi.org/10.5194/jsss-9-327-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/jsss-9-327-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 9, issue 2
Regular research article
 | 
09 Oct 2020
Regular research article |  | 09 Oct 2020

Multi-gas sensor to detect simultaneously nitrogen oxides and oxygen

Julia Herrmann, Gunter Hagen, Jaroslaw Kita, Frank Noack, Dirk Bleicker, and Ralf Moos

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Short summary
In this contribution, an inexpensive and robust impedimetric NOx sensor is presented. The impedance of a functional thick film depends selectively on the NOx concentration in the exhaust but shows a dependency on the oxygen concentration. Therefore, an additional temperature-independent resistive oxygen sensor structure was integrated on the same sensor platform. It serves not only to determine the oxygen concentration in the exhaust, but also to correct the oxygen dependency of the NOx sensor.
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Dresden Sensor Symposium DSS 2019