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Proceedings Paper

Research of a fiber grating demodulation system based on monitoring the auto-tyre health status
Author(s): Guangwei Fu; Yuefeng Qi; Weihong Bi
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Paper Abstract

A polarization maintaining fiber grating multiplexed sensors based on characteristics of some parameters such as transverse strain, longitudinal strain, temperature and rotating speed of tyre and so on is introduced in the article, and all of those are important for safe operation of cars. In addition, a novel fiber grating wavelength demodulation scheme based on the phase-shifted fiber grating is proposed. One or several spectral windows with slight line-width are unfolded in reflecting spectrum of phase-shifted fiber grating. And the location of window changes at linearly with phase-shifted change. The phase-shifted change of phase-shifted fiber grating can match with phase-shift change of multiplexed sensors through using special phase-shifted fiber grating in the demodulation systems. So we can gain some spectral windows with slight line-width in the end, which is looked upon an impulse signal, and these signals can provide convenience for searching wave peak later.

Paper Details

Date Published: 23 February 2006
PDF: 6 pages
Proc. SPIE 6150, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 61504K (23 February 2006); doi: 10.1117/12.676654
Show Author Affiliations
Guangwei Fu, Yanshan Univ. (China)
Yuefeng Qi, Yanshan Univ. (China)
Weihong Bi, Yanshan Univ. (China)


Published in SPIE Proceedings Vol. 6150:
2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
Xun Hou; Jiahu Yuan; James C. Wyant; Hexin Wang; Sen Han, Editor(s)

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