DocumentCode :
1717605
Title :
Pseudo transmission measurement concept for the volume fraction determination of rice in a pneumatic conveying system
Author :
Baer, C. ; Vogt, M. ; Musch, T.
Author_Institution :
Inst. of Electron. Circuits, Ruhr-Univ. Bochum, Bochum, Germany
fYear :
2012
Firstpage :
744
Lastpage :
747
Abstract :
In this contribution, a measurement concept for the volume fraction determination of pneumatic conveyed rice, named pseudo transmission measurement, is presented. The theoretical background of the pseudo transmission measurement as well as an adequate permittivity mixing equation is discussed in detail. Due to the essential knowledge of the rice´s permittivity for the mixing equation, a waveguide cut-off frequency measurement for bulked materials is introduced. Because the pseudo transmission measurement is based on a cross polarization effect, a transpolarizing reflector is introduced and simulation results are presented. Additionally the pseudo transmission measurement is performed and evaluated on various amounts of dispersed rice inside a borosilicate glass tube.
Keywords :
conveyors; food processing industry; food products; pneumatic systems; volume measurement; borosilicate glass tube; cross polarization effect; permittivity mixing equation; pneumatic conveying system; pseudotransmission measurement concept; rice volume fraction determination; transpolarizing reflector; waveguide cut-off frequency measurement; Electron tubes; Equations; Materials; Mathematical model; Permittivity; Permittivity measurement; Volume measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electromagnetics in Advanced Applications (ICEAA), 2012 International Conference on
Conference_Location :
Cape Town
Print_ISBN :
978-1-4673-0333-0
Type :
conf
DOI :
10.1109/ICEAA.2012.6328727
Filename :
6328727
Link To Document :
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