Abstract
A fiber Bragg grating (FBG) sensor system for multi point, dynamic strain or temperature measurement is reported. The system uses a combination of an unbalanced fiber interferometer and phase locked loops and is capable of measuring dynamic signals with frequencies ranging from 100 Hz to10 kHz. Strain measurements with both serial and parallel FBG sensor arrays demonstrate strain resolution of better than 27.5 nε/√Hz and measurement range of 0-3400 με at 10 kHz.
Original language | English |
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Pages (from-to) | 937-941 |
Number of pages | 5 |
Journal | Journal of Optoelectronics and Advanced Materials |
Volume | 4 |
Issue number | 4 |
Publication status | Published - 1 Dec 2002 |
Keywords
- Fiber Bragg gratings
- Fiber optic sensors
- Strain measurements
- Temperature measurements
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering