Parallel multiplexing of fibre optic white light interferometric and fibre Bragg grating sensors for local and global strain measurements

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Abstract
A scheme, based on the parallel multiplexing of long gauge fibre optic white light interferometric (FOWLI) and fibre Bragg grating (FBG) sensors, is proposed to realize quasi-static local and global strain measurements. The demodulation of the sensor system is realized in the spectral domain. A system with two FOWLIs of similar to 500 mm in gauge length and two FBGs of similar to 20 mm in gauge length is built and tested. The results demonstrate that the multiplexing scheme is feasible and the low crosstalk system can be used to realize local and global strain measurements at the same time.
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Author(s)
Zhang, Jianzhong
yuan, l
Peng, Gang-Ding
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Publication Year
2007
Resource Type
Journal Article
Degree Type
UNSW Faculty