title: Bragg grating-based fibre optic sensors in structural health monitoring.
abstract: This work first considers a review of the dominant current methods for fibre Bragg grating wavelength interrogation. These methods include WDM interferometry, tunable filter (both Fabry-Perot and acousto-optic) demultiplexing, CCD/prism technique and a newer hybrid method utilizing Fabry-Perot and interferometric techniques. Two applications using these techniques are described: hull loads monitoring on an all-composite fast patrol boat and bolt pre-load loss monitoring in a composite beam in conjunction with a state-space modelling data analysis technique.
authors.affiliation: Department of Structural Engineering, University of California San Diego, 9500 Gilman Drive, Mail Code 0085, La Jolla, CA 92093-0085, USA. mdt@ucsd.edu
authors.forename: Michael D
authors.initials: MD
authors.lastname: Todd
authors.forename: Jonathan M
authors.initials: JM
authors.lastname: Nichols
authors.forename: Stephen T
authors.initials: ST
authors.lastname: Trickey
authors.forename: Mark
authors.initials: M
authors.lastname: Seaver
authors.forename: Christy J
authors.initials: CJ
authors.lastname: Nichols
authors.forename: Lawrence N
authors.initials: LN
authors.lastname: Virgin
mesh_terms: D003252:Construction Materials / Q000032:analysis*; D004738:Engineering / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D004868:Equipment Failure; D019544:Equipment Failure Analysis / Q000295:instrumentation* / Q000379:methods; D005336:Fiber Optic Technology / Q000295:instrumentation*; D008283:Maintenance / Q000379:methods; D012031:Refractometry / Q000295:instrumentation* / Q000379:methods; D014159:Transducers