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Open AccessArticle

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

Dipartimento di Ingegneria, University of Perugia, via G. Duranti, 93, 06125 Perugia, Italy
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Sensors 2020, 20(12), 3585; https://doi.org/10.3390/s20123585
Received: 31 May 2020 / Revised: 19 June 2020 / Accepted: 23 June 2020 / Published: 25 June 2020
(This article belongs to the Special Issue Soil Moisture Sensors for Irrigation Management)
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. View Full-Text
Keywords: moisture sensor; capacitive measurement; capacitive moisture sensor; soil water content measurement techniques; geotechnical investigation; SKU:SEN0193 sensor moisture sensor; capacitive measurement; capacitive moisture sensor; soil water content measurement techniques; geotechnical investigation; SKU:SEN0193 sensor
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MDPI and ACS Style

Placidi, P.; Gasperini, L.; Grassi, A.; Cecconi, M.; Scorzoni, A. Characterization of Low-Cost Capacitive Soil Moisture Sensors for IoT Networks. Sensors 2020, 20, 3585. https://doi.org/10.3390/s20123585

AMA Style

Placidi P, Gasperini L, Grassi A, Cecconi M, Scorzoni A. Characterization of Low-Cost Capacitive Soil Moisture Sensors for IoT Networks. Sensors. 2020; 20(12):3585. https://doi.org/10.3390/s20123585

Chicago/Turabian Style

Placidi, Pisana; Gasperini, Laura; Grassi, Alessandro; Cecconi, Manuela; Scorzoni, Andrea. 2020. "Characterization of Low-Cost Capacitive Soil Moisture Sensors for IoT Networks" Sensors 20, no. 12: 3585. https://doi.org/10.3390/s20123585

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