Design and Characterization of a Fringing Field Capacitive Soil Moisture Sensor

被引：50

作者：

Goswami, Manash Protim ^{[1
]}

Montazer, Babak ^{[1
]}

Sarma, Utpal ^{[1
]}

机构：

[1] Gauhati Univ, Dept Instrumentat & USIC, Gauhati 781014, India

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2019年 / 68卷 / 03期

关键词：

Capacitive sensor; fringing field; interdigital sensor; printed circuits; simulation; soil moisture; WATER CONTENT; CONDUCTIVITY; HUMIDITY;

D O I：

10.1109/TIM.2018.2855538

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：

This paper addresses the optimization and implementation of a fringing field capacitive soil moisture sensor using the printed circuit board technology. It includes the analysis of a novel configuration of an interdigital sensor for measuring soil moisture with two existing configurations. The optimized designs were simulated by using a 3-D finite-element method and fabricated by using a copper clad board. The performance of the fabricated sensors was evaluated using four soil samples collected from different locations. The observations were compared with the standard gravimetric method to evaluate the soil water content of the samples. The characterization method and the results of the whole sensing system are discussed in terms of calibration, dynamic test, and repeatability.

引用

页码：913 / 922

页数：10

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