Improvement and research on demodulation method of interference pattern optical fiber sensor

QIU Li-zhong1; CAO Jia-nian2; LIU Hai-liang3

doi:10.13873/j.1000-97872011.08.037

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Improvement and research on demodulation method of interference pattern optical fiber sensor

更新时间：2025-09-11

- Improvement and research on demodulation method of interference pattern optical fiber sensor
- Vol. 30, Issue 8, Pages: 28-30(2011)
- 作者机构：
  
  哈尔滨工程大学信息与通信工程学院
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872011.08.037
  CLC： TP212.14
- Published：2011
- 稿件说明：
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[1]邱立忠,曹家年,刘海亮.干涉型光纤传感器解调方法改进与研究[J].传感器与微系统,2011,30(08):28-30.

QIU Li-zhong1, CAO Jia-nian2, LIU Hai-liang3. Improvement and research on demodulation method of interference pattern optical fiber sensor[J]. 2011, 30(8): 28-30.
[1]邱立忠,曹家年,刘海亮.干涉型光纤传感器解调方法改进与研究[J].传感器与微系统,2011,30(08):28-30. DOI： 10.13873/j.1000-97872011.08.037.

QIU Li-zhong1, CAO Jia-nian2, LIU Hai-liang3. Improvement and research on demodulation method of interference pattern optical fiber sensor[J]. 2011, 30(8): 28-30. DOI： 10.13873/j.1000-97872011.08.037.

摘要

通过分析光纤干涉仪输出信号成分和理论推导

提出了干涉型光纤传感器相位生成载波（PGC）调制解调技术的改进方案

通过实验仿真得出

新方案不需要AGC模块就可以消除干涉仪输出光功率漂移对解调结果的影响

而且系统的最低采样频率减低了约1/3。

Abstract

An improved scheme of phase generated carrier（PGC）demodulation technology based on interference pattern optical fiber sensor is put forward by analyzing output signal component of the optical fiber interferometer and the theoretical deduction.Through simulation

influence of the interferometer output light power drift on the effect of demodulation can be eliminated without AGC module.The minimum sampling frequency of the system has been reduced by a third.

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references

干涉型光纤传感器相位生成载波解调方法改进与研究 [J]. 柏林厚,廖延彪,张敏,赖淑蓉. 光子学报 . 2005(09)

基于PGC解调方案的时分复用光纤传感器阵列采样频率的研究 [J]. 刘云涛,曹家年,李丁山,唐波. 哈尔滨工程大学学报 . 2001(06)

干涉型光纤水听器相位载波调制及解调方案研究 [J]. 曹家年,张立昆. 光纤与电缆及其应用技术 . 1998(06)

现代通信原理[M]. 清华大学出版社 , 曹志刚,钱亚生编著, 1992

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