Soil moisture content measurement using optical fiber long period gratings
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Hallett, Stephen H.
Partridge, Matthew
James, Stephen
Tiwari, Ashutosh
Farewell, Timothy S.
Tatam, Ralph P.
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0277-786X
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J.S. Hallett, M. Partridge, S.W. James, D. Tiwari, T. Farewell, S.H. Hallett, R.P. Tatam. Soil moisture content measurement using optical fiber long period gratings. 25th International Conference on Optical Fiber Sensors, 24-28 April 2017, Jeju, Republic of Korea
Abstract
The use of an optical fibre long period grating (LPG) as a soil moisture sensor is reported. Characterization of the device in both clay and sandy soils revealed a sensitivity to moisture levels in the range 10-50%, and the results were compared with the output from a Theta probe, the standard soil moisture sensor, which measures the impedance of the soil. © (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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Github
Keywords
Long Period Grating, Fiber optic, gratings, soil, moisture
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©2017. SPIE. Please refer to any applicable publisher terms of use.