Development of an Optical Soil Moisture Sensor for Agricultural Applications

In this work, we report the analysis and the development of a fiber optic grating sensor based on long-period grating (LPG) coated with a hydrophilic material as a promising technology for measuring soil moisture. The operating principle of LPG is explored, which is based on the modulation of the wa...

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Bibliographic Details
Published in2024 Latin American Workshop on Optical Fiber Sensors (LAWOFS) pp. 1 - 2
Main Authors Atiglo, Corsi Mawuli, Giraldi, Maria Thereza Miranda Rocco, Goncalves Martinez, Maria Aparecida
Format Conference Proceeding
LanguageEnglish
Published SBMO 20.05.2024
Subjects
cylindrical chamber
hydrophilic coating
long-period grating (LPG)
Moisture measurement
Optical fiber sensors
Optical fibers
Sensitivity
Soil measurements
Soil moisture
Wavelength measurement
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Summary:In this work, we report the analysis and the development of a fiber optic grating sensor based on long-period grating (LPG) coated with a hydrophilic material as a promising technology for measuring soil moisture. The operating principle of LPG is explored, which is based on the modulation of the wavelength of light due to variations in the refractive index of the surrounding medium. We discuss how these variations are directly related to changes in soil moisture, making LPG suitable for this application.
DOI:10.23919/LAWOFS62242.2024.10560588