A low-cost microwave moisture sensor

被引：0
作者：
Trabelsi, Samir [1 ]
Nelson, Stuart O.
Ramahi, Omar [1 ,2 ]
机构：
[1] USDA ARS, Richard B Russell Agr Res Ctr, POB 5677, Athens, GA 30604 USA
[2] Univ Waterloo, Dept Elect & Comp Engn, Waterloo, ON N2L 3G1, Canada
来源：
2006 EUROPEAN MICROWAVE CONFERENCE, VOLS 1-4 | 2006年
关键词：
moisture; microwave sensor; complex permittivity; density-independent calibration; wheat; corn;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A low-cost microwave moisture sensor for granular materials operating at a single frequency of 5.8 GHz has been built and tested. The sensor principle is based on measurement of the two components of the relative complex permittivity. From these measurements, a density- and material-independent calibration function is calculated. The linear correlation between the calibration function and moisture provides moisture content in different materials independent of bulk density.
引用
收藏
页码：1429 / +
页数：3
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