Comparison between capacitive and microstructured optical fiber soil moisture sensors
Fecha
2018Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión publicada / Argitaratu den bertsioa
Identificador del proyecto
ES/1PE/TEC2016-76021 ES/1PE/TEC2016-78047-R ES/1PE/TEC2016-79367
Impacto
|
10.3390/app8091499
Resumen
Soil moisture content has always been an important parameter to control because it is a
deterministic factor for site-specific irrigation, seeding, transplanting, and compaction detection.
In this work, a discrete sensor that is based on a SnO2–FP (Fabry-Pérot) cavity is presented and
characterized in real soil conditions. As far as authors know, it is the first time that a microstructured
op ...
[++]
Soil moisture content has always been an important parameter to control because it is a
deterministic factor for site-specific irrigation, seeding, transplanting, and compaction detection.
In this work, a discrete sensor that is based on a SnO2–FP (Fabry-Pérot) cavity is presented and
characterized in real soil conditions. As far as authors know, it is the first time that a microstructured
optical fiber is used for real soil moisture measurements. Its performance is compared with a
commercial capacitive soil moisture sensor in two different soil scenarios for two weeks. The optical
sensor shows a great agreement with capacitive sensor’s response and gravimetric measurements,
as well as a fast and reversible response; moreover, the interrogation technique allows for several
sensors to be potentially multiplexed, which offers the possibility of local measurements instead of
volumetric: it constitutes a great tool for real soil moisture monitoring. [--]
Materias
Photonic crystal fiber,
Microstructured optical fiber,
Fiber sensor,
Humidity sensing,
Soil moisture
Editor
MDPI
Publicado en
Applied Sciences 2018, 8 (9), 1499
Departamento
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica y Electrónica /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa eta Elektronikoa Saila /
Universidad Pública de Navarra. Departamento de Proyectos e Ingeniería Rural /
Nafarroako Unibertsitate Publikoa. Landa Ingeniaritza eta Proiektuak Saila /
Universidad Pública de Navarra/Nafarroako Unibertsitate Publikoa. Institute of Smart Cities - ISC /
Universidad Pública de Navarra/Nafarroako Unibertsitate Publikoa. Institute on Innovation and Sustainable Development in Food Chain - ISFOOD
Versión del editor
Entidades Financiadoras
This work was supported by the Spanish Government projects TEC2016-76021-C2-1-R,
TEC2016-78047-R, TEC2016-79367-C2-2-R, Innocampus and the Cost Action MP 1401, as well as to the AEI/FEDER Funds.