Paper
10 October 2013 An improving demodulation of interferometric fiber optic sensor technology
Li Gao, Yong Li, Zhaorui Chu, Ming Wu, Nan Lin
Author Affiliations +
Proceedings Volume 8916, Sixth International Symposium on Precision Mechanical Measurements; 89163Z (2013) https://doi.org/10.1117/12.2035911
Event: Sixth International Symposium on Precision Mechanical Measurements, 2013, Guiyang, China
Abstract
Commonly used in Interferometric fiber optic sensor signal demodulating methods: passive homodyne method, phase tracking method, heterodyne method and the heterodyne method and so on. Based on the principle of phase generated carrier demodulation techniques for error analysis, Research proposed an improved carrier phase demodulation method and established a complete relatively interferometric fiber-optic sensing system. Experiments demonstrated that it improved amplitude-frequency characteristics of the original system, and obtained higher detection sensitivity.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Li Gao, Yong Li, Zhaorui Chu, Ming Wu, and Nan Lin "An improving demodulation of interferometric fiber optic sensor technology", Proc. SPIE 8916, Sixth International Symposium on Precision Mechanical Measurements, 89163Z (10 October 2013); https://doi.org/10.1117/12.2035911
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KEYWORDS
Demodulation

Fiber optics sensors

Interferometry

Interferometers

Modulation

Homodyne detection

Phase shift keying

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