Title :
Capacitive level monitoring of layered fillings in vessels using composite right/left-handed transmission lines
Author :
Schüssler, Martin ; Mandel, Christian ; Puentes, Margarita ; Jakoby, Rolf
Author_Institution :
Inst. of Microwave Eng. & Photonics, Tech. Univ. Darmstadt, Darmstadt, Germany
Abstract :
This paper presents a concept for level monitoring of layered fillings in vessels with partially or completely unknown properties of the filling materials. A key sensor component is a composite right/left-handed transmission line resonator. Based on this element in combination with the multi resonant cavity perturbation theory an algorithm for the sensor signal processing is derived for the extraction of material properties and filling levels. The presented concept is verified with full wave electromagnetic simulations and experiments that had been carried out with a realized demonstrator.
Keywords :
dielectric properties; filling; level measurement; metamaterials; perturbation theory; transmission lines; capacitive level monitoring; composite right/left-handed transmission lines; filling materials; layered fillings; multiresonant cavity perturbation theory; sensor signal processing; transmission line resonator; Capacitance; Dielectric measurements; Filling; Materials; Mathematical model; Resonant frequency; Transmission line measurements; composite right/left-handed transmission line; resonant perturbation method; resonator;
Conference_Titel :
Microwave Symposium Digest (MTT), 2011 IEEE MTT-S International
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-61284-754-2
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2011.5972632
