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Proceedings Paper

High-speed and long-time FBG interrogation system using wavelength swept laser
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Paper Abstract

The purpose of this research is the development of a system for fabricating high-speed and long-time measurements of wide-band vibration using fiber Bragg gratings (FBGs) to determine the health of structures. We developed a real-time FBG interrogation system using wavelength swept laser. This system can perform real-time measurement of reflected wavelength from a multiple FBG at a temporal resolution of 0.1 ms. The authors also constructed a database system for managing the data obtained from high-speed and long-time measurement. This database system manages data using a relational database and transfers information on FBG reflected wavelengths obtained from this measurement system via the local network. We have demonstrated that this system is able to measure reflected wavelengths from a multipoint FBG at a temporal resolution of 0.1 ms over 24 hours, it was shown that this system could also monitor instantaneously applied high-speed vibrations.

Paper Details

Date Published: 22 June 2015
PDF: 8 pages
Proc. SPIE 9525, Optical Measurement Systems for Industrial Inspection IX, 95252X (22 June 2015); doi: 10.1117/12.2184539
Show Author Affiliations
Tatsuya Yamaguchi, Nihon Univ. (Japan)
Yukitaka Shinoda, Nihon Univ. (Japan)


Published in SPIE Proceedings Vol. 9525:
Optical Measurement Systems for Industrial Inspection IX
Peter Lehmann; Wolfgang Osten; Armando Albertazzi Gonçalves, Editor(s)

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