THE METHOD OF DETECTING INHOMOGENEITIES AND DEFECTS IN MATERIALS USING SENSORS BASED ON THE FIBER BRAGG OPTIC STRUCTURES
Łukasz Zychowicz
lukas.zychowicz@gmail.comLublin University of Technology, Institute of Electronics and Information Technology (Poland)
http://orcid.org/0000-0001-6994-4120
Abstract
The article presents the possibilities of detecting defect in materials using the fiber Bragg gratings (FBG). Steel belts with a thickness of 1 mm were used for the tests: one standard and the others were damaged. The damage was in the form of incisions. The FBG was glued to the sample with epoxy glue along its entire length and elongation by outside force. Based on the transmission spectrum obtained on the Optical Spectrum Analyzer (OSA) the processing characteristics: the main minimum on the transmission characteristics, total width of the spectrum and the full width at half maximum FWHM depending on the FBG strain was determine.
Keywords:
defect detection, fiber Bragg grating, fiber sensorReferences
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Authors
Łukasz Zychowiczlukas.zychowicz@gmail.com
Lublin University of Technology, Institute of Electronics and Information Technology Poland
http://orcid.org/0000-0001-6994-4120
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