Catalyst state observation via the perturbation of a microwave cavity resonator

Frequenz

Volumn 62, Issue 7-8, 2008, Pages 180-184

  Fischerauer, Gerhard ^a   Spörl, Matthias ^a   Gollwitzer, Andreas ^a   Wedemann, Marion ^a   Moos, Ralf ^a  

^a UNIVERSITY OF BAYREUTH   (Germany)

Author keywords

Cavity resonator; In situ; Perturbation; State observation; Three way catalyst; TWC

Indexed keywords

CATALYSTS; CAVITY RESONATORS; EXHAUST GASES; SCATTERING PARAMETERS; STAINLESS STEEL;

AIR TO FUEL RATIOS; CATALYST STATE OBSERVATIONS; DIRECT MEASUREMENT; MICROWAVE CAVITY RESONATORS; OXIDATION/REDUCTION; PERTURBATION; STATE OBSERVATION; THREE WAY CATALYSTS;

MICROWAVE RESONATORS;

EID: 54349095594     PISSN: 00161136     EISSN: None     Source Type: Journal    
DOI: 10.1515/FREQ.2008.62.7-8.180     Document Type: Article

References (5)

1. C. Zimmermann, "Neuartiger Sensor zur Bestimmung des Zustandes eines NOx-Speicherkatalysators" (Novel sensor for determining the state of a NOx storage catalyst; in German), Ph. D. thesis, University of Bayreuth, in: R. Moos, G. Fischerauer (eds.), Bayreuther Beiträge zur Sensorik und Messtechnik, Bd. 2, Aachen, Shaker, 2007.
2. H. M. Altschuler, "Dielectric constant," in: M. Sucher, J. Fox (eds.), Handbook of Microwave Measurements, Brooklyn, Polytech. Inst. Brooklyn, Vol. II, pp. 495-548, 3rd. ed. 1963.
3. S. H. Chao, "Measurements of microwave conductivity and dielectric constant by the cavity perturbation method and their errors," IEEE Trans. MTT, Vol. MTT-33, No., pp. 519-526, 1985.
4. R. F. Harrington, "Time-Harmonic Electromagetic Fields", New York, McGraw-Hill, 1961.
5. R. Moos, M. Spörl, G. Hagen, A. Gollwitzer, M. Wedemann, G. Fischerauer, "TWC: lambda control and OBD without lambda probe - an initial approach", SAE Technical Paper Series, No. 2008-01-0916 (SAE World Congress, Detroit), Apr. 14-17, 2008.