title: Structural monitoring by use of a Brillouin distributed sensor.
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 microepsilon was achieved.
authors.affiliation: Department of Civil Engineering, University of New Brunswick, PO Box 4400, Fredericton, E3B 5A3 New Brunswick, Canada. m4nh@unb.ca
authors.forename: M
authors.initials: M
authors.lastname: DeMerchant
authors.forename: A
authors.initials: A
authors.lastname: Brown
authors.forename: X
authors.initials: X
authors.lastname: Bao
authors.forename: T
authors.initials: T
authors.lastname: Bremner