Resonator Sensor for Moisture Content Measurement

Author

Jiuqing Liu

Author_Institution

Electromech. Eng. Coll., Northeast Forestry Univ., Harbin

Volume

1

fYear

0

fDate

0-0 0

Firstpage

4982

Lastpage

4985

Abstract

A coaxial resonator moisture content sensor is presented in this study based on the model of mixture dielectric characteristic. Then it figures out that the main factors influencing the moisture content measurement are the dielectric constant of protection cover and the no-load resonance frequency f_res. The comprehensive simulations are given to analyze the influences caused by two main factors in measurement. Three resonators with different operating frequencies and two protection covers made of distinct materials are presented. Experiments show that the methods adopted in the paper are constructive for designing sensors, also the no-load resonance frequency f_res should be near 2.5GHz and the material of protection cover is Al₂O₃ to achieve good performances

Keywords

dielectric resonators; moisture measurement; permittivity; sensors; coaxial resonator; dielectric characteristic; dielectric constant; moisture content measurement; no-load resonance frequency; protection cover; resonator sensor; Analytical models; Coaxial components; Dielectric constant; Dielectric measurements; Frequency measurement; Moisture measurement; Protection; Resonance; Resonant frequency; Sensor phenomena and characterization; coaxial resonator; moisture content measurement; moisture sensor;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Control and Automation, 2006. WCICA 2006. The Sixth World Congress on

Conference_Location

Dalian

Print_ISBN

1-4244-0332-4

Type

conf

DOI

10.1109/WCICA.2006.1713335

Filename

1713335