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The Temperature Compensation of FBG Sensor for Monitoring the Stress on Hole-Edge
- Source :
- IEEE Photonics Journal, Vol 10, Iss 4, Pp 1-9 (2018)
- Publication Year :
- 2018
- Publisher :
- IEEE, 2018.
-
Abstract
- To apply Fiber Bragg Grating (FBG) sensors in the hole structural health monitoring of aircraft, this study investigates a temperature compensation algorithm based on Fourier curve-fitting, combined with an analysis of FBG layout. The results identify that the wavelengths have a linear relationship with stress and temperature and the linear correlation coefficients are all greater than 0.9. In the experiment, the temperature range was 17 °C-100 °C (step is 10 °C) and the tensile force changed from 0 N to 10 KN (step is 1 KN). With the Fourier curve-fitting of the wavelength variation, the temperature compensation can be actualized, and the average error of temperature is 0.17 °C. By integrating the algorithm in the self-developed FBG interrogation system, the real-time monitoring of stress is achieved with the average error of stress is 3.9 με.
Details
- Language :
- English
- ISSN :
- 19430655
- Volume :
- 10
- Issue :
- 4
- Database :
- Directory of Open Access Journals
- Journal :
- IEEE Photonics Journal
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.2d864108f3fa4516a9073d2a79e1608f
- Document Type :
- article
- Full Text :
- https://doi.org/10.1109/JPHOT.2018.2858847