Structural monitoring by use of a Brillouin distributed sensor
- 1 May 1999
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 38 (13) , 2755-2759
- https://doi.org/10.1364/ao.38.002755
Abstract
The testing of a fiber-optic distributed-strain sensor attached to a simple structural member is reported. A Brillouin scattering-based sensor system was used to measure both tensile and compressive strains along the length of a cantilever beam subjected to various loads. The sensing fiber was attached to the beam in such a way that some sections experienced uniform strain, whereas others were subjected to a nonuniform strain distribution. A spatial resolution of 0.4 m was used, and a measurement precision of approximately ±50 µε was achieved.Keywords
This publication has 3 references indexed in Scilit:
- Brillouin optical-fiber frequency-domain analysis for distributed temperature and strain measurementsJournal of Lightwave Technology, 1997
- Development of a distributed sensing technique using Brillouin scatteringJournal of Lightwave Technology, 1995
- 22-km distributed temperature sensor using Brillouin gain in an optical fiberOptics Letters, 1993