Optical-based sensors for monitoring corrosion of reinforcement rebar via an etched cladding Bragg grating.

Optical-based sensors for monitoring corrosion of reinforcement rebar via an etched cladding Bragg grating.
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DOI:
10.3390/s121115820
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发表时间:
2012-11-14
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
通讯作者:
Adikan FR
Adikan FR
中科院分区:
其他
文献类型:
--
作者:
Abu Hassan MR;Abu Bakar MH;Dambul K;Adikan FR

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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.
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