Research on gas image detection sensor using optical fiber interference cavity

WANG Yi1; GUO Li-li2

doi:10.13873/j.1000-97872010.06.002

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Research on gas image detection sensor using optical fiber interference cavity

更新时间：2025-09-11

- Research on gas image detection sensor using optical fiber interference cavity
- Vol. 29, Issue 6, Pages: 59-62(2010)
- 作者机构：
  
  1. 中国计量学院
  2. 哈尔滨工程大学
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872010.06.002
  CLC： TD712.55
- Published：2010
- 稿件说明：
移动端阅览
[1]王怡,郭黎利.采用光纤干涉腔的瓦斯图像探测传感器研究[J].传感器与微系统,2010,29(06):59-62.

WANG Yi1, GUO Li-li2. Research on gas image detection sensor using optical fiber interference cavity[J]. 2010, 29(6): 59-62.
[1]王怡,郭黎利.采用光纤干涉腔的瓦斯图像探测传感器研究[J].传感器与微系统,2010,29(06):59-62. DOI： 10.13873/j.1000-97872010.06.002.

WANG Yi1, GUO Li-li2. Research on gas image detection sensor using optical fiber interference cavity[J]. 2010, 29(6): 59-62. DOI： 10.13873/j.1000-97872010.06.002.

摘要

针对红外线吸收式瓦斯传感器难以解决的问题:可调谐光源昂贵

调制解调原理复杂并且可靠性低。充分发挥白光干涉的简单可靠、灵敏度高的优势

利用瓦斯中甲烷引起空气折射率变化的特点

构成光纤空气腔的马赫—曾德尔（Mach-Zehnder）干涉仪。通过杨氏干涉在白板上形成干涉条纹

条纹参数和瓦斯体积分数成比例变化。解析条纹变化在高精度测量时采用摄像头进行信息采集

再利用图像分析软件进行瓦斯体积分数计量。同时还可以通过无线与光纤网络进行远程传递。通过实验证明:该方法精确度和灵敏度比较高

可靠性好

使光学瓦斯传感器能够广泛应用。

Abstract

Aimed at the difficult problem of infrared absorption gas sensor that the tunable lights is expensive

modulation and demodulation scheme is complex and reliability is low.Mach-Zehnder interferometer with fiber air cavity is adopted to detect gas.The principle is CH4 cause air index of refraction change

interference lights take shape interference stripes on white board by Young’s interference

the parameter of stripe changes proportional to the volume fraction.To analyze change in stripes

information are collected by camera in high-accuracy measurement

gas volume fraction is calculated by image analysis software and proceeds to long-range data transmission by wireless and fiber-optic network.The experiment results show that the method is of high sensitivity and precision

good reliability

so that optical gas sensor can be used widely.

关键词

Keywords

references

基于线阵CCD和FPGA干涉型甲烷测量仪的研究 [D]. 张培源. 天津大学 2008

Ferrocenylenesilylene Polymers as Coatings for Tapered Optical-Fiber Gas Sensors [J] . Loren I. Espada,Mehdi Shadaram,Jean Robillard,Keith H. Pannell. Journal of Inorganic and Organometallic Polymers . 2000 (4)

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