期刊
MEASUREMENT
卷 94, 期 -, 页码 119-125出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.measurement.2016.07.046
关键词
Microwave aquametry; Ring resonator; Soil sensor; Reflection; Dielectric; Lumped element; Moisture content
资金
- Ministry of Higher Education (MOHE) from Malaysia
- Research University Grant from University Teknologi Malaysia [Q.J130000.2523.04H77]
This paper proposes a modified microstrip ring resonator sensor with four-legged element structure design for microwave soil aquametry application. Dielectric prediction based on different moisture content, m.c. for measurement of peat and sand soils by applying conversion of the measured reflection coefficient, vertical bar Gamma vertical bar to relative dielectric constant, epsilon'(r) is computed via a proposed lumped element model. The microstrip ring resonator sensor is designed to operate between 0.5 GHz and 4.5 GHz with the resonance at 3.2 GHz. In this work, this model was found to be accurate with an error within 5% in dielectric prediction with the commercial dielectric probe for peat soil (>= 28% m.c.) and sand soil (>= 10% m.c.). For soil moisture content prediction, the mean deviation between predicted and actual moisture content is within 1.5% m.c. for both peat and sand soils in the experiment. (C) 2016 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据