In-situ microwave measurement system for on-board catalyst state monitoring
Conference: Sensoren und Messsysteme 2014 - Beiträge der 17. ITG/GMA-Fachtagung
06/03/2014 - 06/04/2014 at Nürnberg, Deutschland
Proceedings: Sensoren und Messsysteme 2014
Pages: 4Language: englishTyp: PDF
Personal VDE Members are entitled to a 10% discount on this title
Authors:
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)
Abstract:
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.