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Capacitive Fill-Level Measurement Using Configurable Electrodes for Adaptivity


Kandlbinder, Christoph ; Sporer, Teresa ; Siegel, Tobias ; Mößle, Patrick ; Fischerauer, Alice ; Zürl, Tristan ; Fischerauer, Gerhard:
Capacitive Fill-Level Measurement Using Configurable Electrodes for Adaptivity.
In: AMA Service GmbH (Hrsg.): Sensor 2017 : 18th International Conference on Sensors and Measurement Technology. [Und:] IRS² 2017 : 15th International Conference on Infrared Sensors & Systems. - Wunstorf : AMA Service GmbH , 2017 . - S. 161-165
ISBN 978-3-9816876-4-4
DOI: 10.5162/sensor2017/B1.2


The observation of fluids and their properties is a frequent task in the field of process engineering. As capacitive measurement techniques can well distinguish between higher-permittivity liquids such as water on the one hand and gases such as air on the other hand, they are well suited to determine liquid/gas distributions. One such application is the contactless measurement of water fill level in a pipe. We designed, implemented and tested a capacitive measurement system for this application. It consists of electrodes distributed along the pipe circumference which can be combined electronically to form smaller or larger "synthetic electrodes". By measuring the capacitances between the electrodes, one obtains information about the water/gas distribution inside the pipe with a spatial resolution depending on the size of the configurable electrodes. Thus, it becomes possible to quickly obtain coarse fill-level information with larger electrodes and then refine the spatial resolution in a region of interest with a small-electrode configuration (which incurs longer measurement times). The system was successfully tested on a test bench with a pipe inside of which the liquid could be made to slosh by axial movements.

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Publikationsform: Aufsatz in einem Buch
Begutachteter Beitrag: Nein
Keywords: Capacitance; adaptivity; electrodes; configurable; fill-level
Institutionen der Universität: Fakultäten
Fakultäten > Fakultät für Ingenieurwissenschaften
Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Mess- und Regeltechnik
Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Mess- und Regeltechnik > Lehrstuhl Mess- und Regeltechnik - Univ.-Prof. Dr.-Ing. Gerhard Fischerauer
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Eingestellt am: 06 Jun 2017 08:43
Letzte Änderung: 06 Jun 2017 08:43
URI: https://eref.uni-bayreuth.de/id/eprint/37431