23 April 2017 Soil moisture content measurement using optical fiber long period gratings
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Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103232J (2017) https://doi.org/10.1117/12.2263427
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of
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.
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J. S. Hallett, J. S. Hallett, M. Partridge, M. Partridge, S. W. James, S. W. James, D. Tiwari, D. Tiwari, T. Farewell, T. Farewell, S. H. Hallett, S. H. Hallett, R. P. Tatam, R. P. Tatam, } "Soil moisture content measurement using optical fiber long period gratings", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103232J (23 April 2017); doi: 10.1117/12.2263427; https://doi.org/10.1117/12.2263427
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