In-situ microwave measurement system for on-board catalyst state monitoring

Konferenz: Sensoren und Messsysteme 2014 - Beiträge der 17. ITG/GMA-Fachtagung
03.06.2014 - 04.06.2014 in Nürnberg, Deutschland

Tagungsband: ITG-Fb. 250: Sensoren und Messsysteme 2014

Seiten: 4Sprache: EnglischTyp: PDF

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Autoren:
Krolak, R.; Schoedel, S.; Motroniuk, I.; Fischerauer, G. (Chair of Metrology and Control Engineering, Bayreuth Engine Research Center (BERC), Universitaet Bayreuth, 95440 Bayreuth, Germany)
Beulertz, G. (Chair of Functional Materials, Bayreuth Engine Research Center (BERC), Universitaet Bayreuth, 95440 Bayreuth, Germany)

Inhalt:
It has been shown time and again that the internal state of automotive catalysts can be diagnosed with microwave (cavity perturbation) techniques. In this contribution, we propose a reflectometer solution, or one-port scalar network analyzer, which is small and cost-efficient enough to pave the way for actual on-board diagnostics. Our main goal is to qualify the characteristics of this system setup, which is very flexible in terms of power, frequency bandwidth, and configuration.