Journal
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
Volume 64, Issue 12, Pages 3510-3516Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIM.2015.2459511
Keywords
Fiber optic sensor; impressed current technique; steel rebar corrosion measurement; tilted fiber Bragg grating (TFBG)
Funding
- University of Malaya [PG006-2014A, UM.C/625/1/HIR/MOHE/ENG/54, SF008-2014]
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In this paper, the tilted fiber Bragg grating is proposed as a corrosion sensor and experimentally demonstrated for measuring and evaluating corrosion of steel rebars in wet conditions. To expedite the corrosion process, the impressed current technique was used to achieve a 28.9% mass loss in the rebar for a total time of 24 h. It is observed that the cladding resonant wavelengths red-shift during the corrosion process and the wavelength shifts are greater for higher order resonances. The proposed technique can be used for monitoring steel corrosion.
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