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

Volume

2

fYear

2003

fDate

7-9 Oct. 2003

Firstpage

539

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2003. 33rd European

Print_ISBN

1-58053-834-7

Type

conf

DOI

10.1109/EUMC.2003.1262947

Filename

1262947