Characterization of Low-Cost Capacitive Soil Moisture Sensors for IoT Networks

被引：49

作者：

Placidi, Pisana ^{[1
]}

Gasperini, Laura ^{[1
]}

Grassi, Alessandro ^{[1
]}

Cecconi, Manuela ^{[1
]}

Scorzoni, Andrea ^{[1
]}

机构：

[1] Univ Perugia, Dipartimento Ingn, Via G Duranti 93, I-06125 Perugia, Italy

来源：

SENSORS | 2020年 / 20卷 / 12期

关键词：

moisture sensor; capacitive measurement; capacitive moisture sensor; soil water content measurement techniques; geotechnical investigation; SKU; SEN0193; sensor; WATER-CONTENT; ELECTRICAL-CONDUCTIVITY; FOOD-INDUSTRY; AGRICULTURE; TEMPERATURE; MANAGEMENT;

D O I：

10.3390/s20123585

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The rapid development and wide application of the IoT (Internet of Things) has pushed toward the improvement of current practices in greenhouse technology and agriculture in general, through automation and informatization. The experimental and accurate determination of soil moisture is a matter of great importance in different scientific fields, such as agronomy, soil physics, geology, hydraulics, and soil mechanics. This paper focuses on the experimental characterization of a commercial low-cost "capacitive" coplanar soil moisture sensor that can be housed in distributed nodes for IoT applications. It is shown that at least for a well-defined type of soil with a constant solid matter to volume ratio, this type of capacitive sensor yields a reliable relationship between output voltage and gravimetric water content.

引用

页码：1 / 14

页数：14

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