Fiber optic based inclinometer for remote monitoring of landslides: On site comparison with traditional inclinometers

Author

Minardo, A. ; Picarelli, L. ; Avolio, B. ; Coscetta, A. ; Papa, R. ; Zeni, G. ; Di Maio, C. ; Vassallo, R. ; Zeni, L.

Author_Institution

DIII, Second Univ. of Naples, Aversa, Italy

fYear

2014

fDate

13-18 July 2014

Firstpage

4078

Lastpage

4081

Abstract

Distributed optical fiber sensors, and in particular those based on stimulated Brillouin scattering, have in recent years been the object of a growing attention for structural and environmental monitoring of large areas because they allow to measure strain and temperature profiles up to tens of kilometers with a strain accuracy of ±10ue and a temperature accuracy of ±1°C. In this paper, we present the application of the above sensing principle to the realization and field testing of a novel inclinometer for the measurement of 3D deformation of soil.

Keywords

atmospheric temperature; deformation; environmental monitoring (geophysics); fibre optic sensors; geomorphology; geophysical techniques; soil; stimulated Brillouin scattering; distributed optical fiber sensor; fiber optic based inclinometer; large area environmental monitoring; large area structural monitoring; novel inclinometer field testing; novel inclinometer realization; remote landslide monitoring; sensing principle application; soil 3D deformation measurement; stimulated Brillouin scattering; strain accuracy; strain profile measurement; temperature accuracy; temperature profile measurement; traditional inclinometer on site comparison; Optical fiber sensors; Optical fibers; Scattering; Strain; Temperature measurement; Temperature sensors; BOTDA; Optical fiber sensors; SBS;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International

Conference_Location

Quebec City, QC

Type

conf

DOI

10.1109/IGARSS.2014.6947382

Filename

6947382