Simple empirical formulas to estimate the dielectric constant and conductivity of concrete

被引：14
|
作者：
Jin, Xiaohua [1 ]
Ali, Mohammod [2 ]
机构：
[1] Voorhees Coll, Div Sci Technol Hlth & Human Serv, Denmark, SC USA
[2] Univ South Carolina, Dept Elect Engn, Columbia, SC 29208 USA
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2019年 / 61卷 / 02期
关键词：
concrete; dielectric constant; moisture content; RADAR; SENSOR;
D O I：
10.1002/mop.31577
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：
Knowing the frequency-dependent and moisture-dependent relative permittivity and conductivity values of concrete is critical to develop a variety of future wireless and radar technologies including sensing, wireless power transfer, and radar imaging. Due to their continuity of two parameters (frequency and moisture content) and based on the existing measurement results of concrete dielectric constant and conductivity in the literature several simple mathematical expressions are developed to estimate the dielectric constant and conductivity of concrete. These formulas can be used to estimate the dielectric constant and conductivity of concrete from just a few MHz to 2 GHz with moisture content varying from 0 % to 10%.
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页码：386 / 390
页数：5
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