Soil moisture content measurement using optical fiber long period gratings

J. S. Hallett; M. Partridge; S. W. James; D. Tiwari; T. Farewell; S. H. Hallett; R. P. Tatam

doi:10.1117/12.2263427

23 April 2017 Soil moisture content measurement using optical fiber long period gratings

J. S. Hallett, M. Partridge, S. W. James, D. Tiwari, T. Farewell, S. H. Hallett, R. P. Tatam

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.

Citation Download Citation

J. S. Hallett, M. Partridge, S. W. James, D. Tiwari, T. Farewell, S. H. Hallett, and 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); https://doi.org/10.1117/12.2263427

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