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Proceedings Paper

Soil moisture content measurement using optical fiber long period gratings
Author(s): J. S. Hallett; M. Partridge; S. W. James; D. Tiwari; T. Farewell; S. H. Hallett; R. P. Tatam
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Paper 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.

Paper Details

Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103232J (23 April 2017); doi: 10.1117/12.2263427
Show Author Affiliations
J. S. Hallett, Cranfield Univ. (United Kingdom)
M. Partridge, Cranfield Univ. (United Kingdom)
S. W. James, Cranfield Univ. (United Kingdom)
D. Tiwari, Cranfield Univ. (United Kingdom)
T. Farewell, Cranfield Univ. (United Kingdom)
S. H. Hallett, Cranfield Univ. (United Kingdom)
R. P. Tatam, Cranfield Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)

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