title: Optical-based sensors for monitoring corrosion of reinforcement rebar via an etched cladding Bragg grating.
abstract: In this paper, we present the development and testing of an optical-based sensor for monitoring the corrosion of reinforcement rebar. The testing was carried out using an 80% etched-cladding Fibre Bragg grating sensor to monitor the production of corrosion waste in a localized region of the rebar. Progression of corrosion can be sensed by observing the reflected wavelength shift of the FBG sensor. With the presence of corrosion, the etched-FBG reflected spectrum was shifted by 1.0 nm. In addition, with an increase in fringe pattern and continuously, step-like drop in power of the Bragg reflected spectrum was also displayed.
authors.affiliation: Department of Electrical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia. muhdrosdi22@gmail.com
authors.forename: Muhammad Rosdi
authors.initials: MR
authors.lastname: Abu Hassan
authors.forename: Muhammad Hafiz
authors.initials: MH
authors.lastname: Abu Bakar
authors.forename: Katrina
authors.initials: K
authors.lastname: Dambul
authors.forename: Faisal Rafiq Mahamd
authors.initials: FR
authors.lastname: Adikan