Measurement model of integrated FBG sensor for beam structure
Journal of Optics(2023)
Abstract
Fibre Bragg grating sensors are investigated in various structural health monitoring systems. Most of these research used a variety of FBG sensors to assess the structures' temperature and strain. The FBG sensor is combined with two fixed and cantilever beam structures in the proposed study. A wide range of pressure and temperature are considered during the analysis. In different circumstances, the range of wavelength shift obtained has been evaluated. In mathematical modelling, the definition of the correlation between variables has been taken into consideration using linear regression approaches. The fixed beam model demonstrated good agreement with a R -squared score of 96%. For a cantilever beam, R squared was 88%. The obtained wavelength range of the cantilever beam is larger, ranging from 1.552 to 1.566 nm. Proposed work will enable more precise sensor calibration, ensuring accurate measurements and helpful in simultaneous measuring multiple parameters, making them invaluable in a wide range of applications.
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Key words
integrated fbg sensor,measurement model,beam
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