All digitization demodulation design and analysis based on PGC fiber-optic sensor

ZHU Jun; WANG Qiang; ZHAI Yong-jun; SHEN Hai-bin; GU Xiao-hong

doi:10.13873/j.1000-9787(2017)07-0116-04

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All digitization demodulation design and analysis based on PGC fiber-optic sensor

更新时间：2025-09-11

- All digitization demodulation design and analysis based on PGC fiber-optic sensor
- Vol. 36, Issue 7, Pages: 116-119(2017)
- 作者机构：
  
  1. 中国计量大学机电工程学院
  2. 中国计量大学质量与安全工程学院
  3. 山东省特种设备检测研究院泰安分院
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-9787(2017)07-0116-04
  CLC： TP212
- Published：2017
- 稿件说明：
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[1]朱俊,王强,翟永军,沈海滨,谷小红.基于PGC光纤传感器的全数字化解调设计与分析[J].传感器与微系统,2017,36(07):116-119.

ZHU Jun, WANG Qiang, ZHAI Yong-jun, et al. All digitization demodulation design and analysis based on PGC fiber-optic sensor[J]. 2017, 36(7): 116-119.
[1]朱俊,王强,翟永军,沈海滨,谷小红.基于PGC光纤传感器的全数字化解调设计与分析[J].传感器与微系统,2017,36(07):116-119. DOI： 10.13873/j.1000-9787(2017)07-0116-04.

ZHU Jun, WANG Qiang, ZHAI Yong-jun, et al. All digitization demodulation design and analysis based on PGC fiber-optic sensor[J]. 2017, 36(7): 116-119. DOI： 10.13873/j.1000-9787(2017)07-0116-04.

摘要

介绍了一种基于Mach-Zehnder和Sagnac混合干涉型分布式光纤传感器的相位产生载波（PGC）全数字化解调系统。针对GD32F103信号算法处理芯片

进行了PGC数字解调系统的设计

对系统性能进行了分析

最后与模拟解调效果进行了性能对比分析。实验待测信号为0

0 kHz

理想情况下管道泄漏点距离法拉第旋转镜距离为8 045 m

实际情况下距离为8 188.7 m

绝对误差为143.7 m

相对误差为1.75%。本数字系统具有良好的稳定性和较高的定位精度。

Abstract

A kind of phase generated carrier（ PGC） digital demodulation system of distributed optical fiber sensor based on hybrid interferometric configuration of Mach-Zehnder and Sagnac is introduced. For the GD32F103 chip of signal processing of algorithm

design PGC digital demodulation system

performance analysis of PGC digital demodulation system is carried out

and comparison with analog demodulation effect and analysis is carried out.The test signal is 0

50 kHz in the experiment

in an ideal condition

distance between leak point and Faraday rotation mirror is 8 045 m

actual distance is 8 188. 7 m

absolute error is 143. 7 m

the relative error is 1. 75 %. This digital system has good stability and high positioning precision.

关键词

Keywords

references

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