Title :
A new permittivity model for the microwave moisture measurement of wet sand
Author :
Fratticcioli, Elisa ; Dionigi, Marco ; Sorrentino, Roberto
Author_Institution :
Univ. of Perugia, Italy
Abstract :
A new mixing model for the dielectric constant of wet powdered materials is presented. By an accurate calibration the model allows the computation of the moisture content of wet powdered materials. Moisture determination is based on permittivity measurements by a microwave resonant sensor developed in previous work. The results of silica sand measurements show that an accuracy of ±1% in moisture content can be obtained. The measurement procedure is easy and fast; it can be performed in real time and even in an industrial environment.
Keywords :
microwave detectors; microwave measurement; moisture measurement; permittivity; porous materials; sand; calibration; dielectric constant; microwave moisture measurement; microwave resonant sensor; mixing model; moisture content computation; moisture determination; permittivity measurements; permittivity model; silica sand measurements; wet powdered materials; wet sand; Calibration; Computational modeling; Dielectric constant; Dielectric materials; Dielectric measurements; Microwave sensors; Moisture measurement; Permittivity measurement; Resonance; Silicon compounds;
Conference_Titel :
Microwave Conference, 2003. 33rd European
Print_ISBN :
1-58053-834-7
DOI :
10.1109/EUMC.2003.1262947
