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Proceedings Paper

Demodulation features of different types of signals for fiber-optic sensors
Author(s): Yabin Zhang; Xintong Sun; Jianian Cao; Chao Zhang
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Paper Abstract

The detection abilities of PGC scheme dealing with the single frequency signal are investigated, based on which, the frequency domain of the signal is analyzed. Based on the Bessel function theoretic, the mathematical model has been established to analyze the performance of interferometric fiber-optic sensor under the PGC demodulation scheme. The spectrums of interferometer output signals are analyzed when the input signal is single frequency signal and multifrequency signal. Simulation results show that the dynamic domain upper limit of fiber-optic sensor when it operates with the multi-frequency signal must be much smaller than that it operates the single frequency signal.

Paper Details

Date Published: 9 November 2010
PDF: 5 pages
Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 78530A (9 November 2010);
Show Author Affiliations
Yabin Zhang, Harbin Engineering Univ. (China)
Xintong Sun, Harbin Engineering Univ. (China)
Jianian Cao, Harbin Engineering Univ. (China)
Chao Zhang, Harbin Engineering Univ. (China)

Published in SPIE Proceedings Vol. 7853:
Advanced Sensor Systems and Applications IV
Brian Culshaw; Yanbiao Liao; Anbo Wang; Xiaoyi Bao; Xudong Fan; Lin Zhang, Editor(s)

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