Optical-based sensors for monitoring corrosion of reinforcement rebar via an etched cladding Bragg grating
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....
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI
2012
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| Subjects: | |
| Online Access: | http://eprints.um.edu.my/10061/1/Optical-Based_Sensors_for_Monitoring_Corrosion_of.pdf http://eprints.um.edu.my/10061/ http://www.mdpi.com/1424-8220/12/11/15820 |
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| Institution: | Universiti Malaya |
| Language: | English |
| Summary: | 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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