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Application of a temperature-compensating FBG sensor to strain measurement
- Authors
- Jung, D.-W.; Kwon, I.-B.; Choi, N.-S.
- Issue Date
- Oct-2007
- Publisher
- Trans Tech Publications
- Keywords
- Electrical resistance strain gage; Mechanical strain; Temperature-compensating double FBG sensor; Thermal strain
- Citation
- Advanced Materials Research, v.24-25, pp.1089 - 1092
- Indexed
- SCOPUS
- Journal Title
- Advanced Materials Research
- Volume
- 24-25
- Start Page
- 1089
- End Page
- 1092
- ISSN
- 1022-6680
- Abstract
- A temperature-compensating fiber Bragg grating(FBG) sensor having two different FBGs in one fiber line was applied to the real time measurement of mechanical normal strain in structures. Measurement of mechanical strains of the aluminum beam surface by the double FBG sensor was performed under various thermal conditions, which was compared with results of electrical resistance strain gage. The FBG sensor fabricated in this study could detect accurately values of mechanical strains without containing any thermal strain component.
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