Title :
Microwave sensors for technological processes with sedimentable substances
Author :
Sovlukov, A.S. ; Toropainen, A.P. ; Vainikainen, P.V.
Author_Institution :
Radio Lab., Helsinki Univ. of Technol., Espoo, Finland
Abstract :
Industrial microwave sensors for technological processes dealing with sedimentable substances are considered These sensors are based on the use of waveguide resonators supporting TE01n-modes. Inherent to them zero electric field at metal surfaces provides significant reduction of influence of dielectric sediments on measurements results. As examples circular and coaxial waveguide resonator-based sensors of liquid level in tanks are described. Methods for suppression of undesirable modes are described
Keywords :
cavity resonators; electric sensing devices; interference suppression; level measurement; microwave measurement; sediments; waveguide components; TE01n-modes; circular waveguide sensors; coaxial waveguide sensors; dielectric sediments; industrial microwave sensors; interference suppression; liquid level; metal surfaces; sedimentable substances; tanks; technological processes; waveguide resonators; zero electric field; Coaxial components; Dielectrics; Microwave sensors; Microwave technology; Q factor; Resonance; Sediments; Sensor phenomena and characterization; Surface waves; Uncertainty;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2000. IMTC 2000. Proceedings of the 17th IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-5890-2
DOI :
10.1109/IMTC.2000.848839
