@article{e3ee6393d3f447cda1cb836a2a19ac48,
title = "Monitoring of sea bed level changes in nearshore regions using fiber optic sensors",
abstract = "This work reports the implementation and test of a pressure optical sensor suitable to measure, in situ, the sea bed level changes in the nearshore regions. The sensor is based on a fiber Bragg grating (FBG) embedded in a polymeric resin block. The increase of the pressure on the top face of the sensor, due to the change of sediments layer height, results in a change of the FBG Bragg wavelength. The sensor response reveals the capacity to discriminate sea bed level changes down to 2.5 cm, under field survey conditions. Finally, the sensor was successfully tested in a field trial survey at Costa da Caparica, Portugal.",
keywords = "Fiber Bragg grating, Nearshore region, Optical sensor, Pressure measurement, Sand",
author = "Ferreira, {L. F.} and P. Antunes and F. Domingues and Silva, {P. A.} and Andr{\'e}, {P. S.}",
note = "Funding Information: This work was supported by the Project BRISA – BReaking waves and Induced SAnd transport – PTDC/ECM/67411/2006. P. Antunes acknowledge the financial support from Funda{\c c}{\~a}o para a Ci{\^e}ncia e Tecnologia (FCT) through the Ph.D. fellowship SFRH/BD/41077/2007. The support from the noncrystalline group from the I3N laboratory for the mechanical tests is gratefully acknowledged. The authors also wish to thank the BRISA project patterns (LNEC and University of Algarve) for their support during the field survey. {\'O}scar Ferreira (University of Algarve) is gratefully acknowledged for providing the topographic data.",
year = "2012",
month = jul,
doi = "10.1016/j.measurement.2012.02.026",
language = "British English",
volume = "45",
pages = "1527--1533",
journal = "Measurement: Journal of the International Measurement Confederation",
issn = "0263-2241",
publisher = "Elsevier B.V.",
number = "6",
}