Document Type
Article
Publication Date
11-14-2012
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.
Keywords
Optical based corrosion sensor, Etched fibre Bragg grating, Fibre Bragg grating, Reinforcement rebar corrosion
Publication Title
Sensors
Divisions
fac_eng
Volume
12
Issue
11
Publisher
MDPI