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Proceedings Paper

Data fusion in multiparameter measurement of optical fiber sensors system
Author(s): Junfeng Jiang; Tiegen Liu; Yimo Zhang; Jie Sun; Chuan Li; Sheng Ding
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Paper Abstract

Multi-parameter measurement is important for building health monitoring. In this paper, we use fiber Bragg grating (FBG) and extrinsic Fabry-Perot interferometer (EFBI) sensor to realize the measurement of strain, temperature and vibration. A universal demodulate method, which combines the low coherence interference demodulation of EFBI and fiber Fourier transform demodulation of FBG, is proposed. Thus it is possible to extract the signals from FBG and EFBI parallely with only a Michelson interferometer. A data fusion model is established to process the origin data to get more precise results and distinguish the different parameters. The system is tested on a equi-intensity cantilever, and the results of experiment show that strain and temperature can be obtained efficiently.

Paper Details

Date Published: 15 December 2003
PDF: 3 pages
Proc. SPIE 5260, Applications of Photonic Technology 6, (15 December 2003); doi: 10.1117/12.543839
Show Author Affiliations
Junfeng Jiang, Tianjin Univ. (China)
Tiegen Liu, Tianjin Univ. (China)
Yimo Zhang, Tianjin Univ. (China)
Jie Sun, Tianjin Univ. (China)
Chuan Li, Tianjin Univ. (China)
Sheng Ding, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 5260:
Applications of Photonic Technology 6
Roger A. Lessard; George A. Lampropoulos, Editor(s)

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