Resolving ambiguity in broadband waveguide permittivity measurements on moist materials

被引：32
|
作者：
Ball, JAR [1 ]
Horsfield, B [1 ]
机构：
[1] Univ So Queensland, Dept Elect Engn, Toowoomba, Qld 4350, Australia
来源：
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 1998年 / 47卷 / 02期
关键词：
dielectric measurements; microwave measurements; moisture measurement; permittivity measurement; scattering parameters measurement; waveguide theory;
D O I：
10.1109/19.744179
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：
The dielectric properties of moist materials depend strongly on free water content. Moisture content may be conveniently sensed using microwaves, provided that calibration data is available. One common method utilizes network analyzer transmission measurements on waveguide cells filled with samples of known water content. Since this technique yields multiple solutions for the complex permittivity, a simple procedure has been developed to identify the correct solution. This has proved to be highly reliable and lends itself to measurement automation.
引用
收藏
页码：390 / 392
页数：3
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