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天然气管道泄漏可调谐二极管激光遥感探测的研究
引用本文:樊宏,高晓明,鲍健,王霞,黄腾,黄伟,曹振松,张为俊.天然气管道泄漏可调谐二极管激光遥感探测的研究[J].光谱学与光谱分析,2006,26(8):1423-1427.
作者姓名:樊宏  高晓明  鲍健  王霞  黄腾  黄伟  曹振松  张为俊
作者单位:1. 中国科学院安徽光学精密机械研究所环境光谱学实验室,安徽,合肥,230031;合肥工业大学仪器科学与光电工程学院,安徽,合肥,230031
2. 中国科学院安徽光学精密机械研究所环境光谱学实验室,安徽,合肥,230031
基金项目:安徽省自然科学基金 , 国家高技术研究发展计划(863计划)
摘    要:天然气管道泄漏不仅造成经济损失而且是危险之源.传统的天然气管道泄漏检测技术效率低、速度慢,难以满足实际应用的需要.近年来以近红外二极管激光吸收光谱为基础的光学传感器由于具有灵敏度高、体积小、重量轻和无需维护等优点而得到了广泛的应用.文章以可调谐二极管激光吸收光谱和谐波探测技术为基础进行天然气管道泄漏遥感探测技术的研究,采用二次谐波与一次谐波信号的比值作为系统浓度标定,结果显示浓度与比值之间具有较好的一致性.文章还就不同地形散射体对探测结果的影响进行了测量和分析,实验结果表明二次谐波与一次谐波信号比值标定技术对便携式二极管激光光学测量能够很好的满足实际应用的需要.

关 键 词:可调谐二极管激光  天然气  遥感探测  波长调制
文章编号:1000-0593(2006)08-1423-05
收稿时间:2005-03-15
修稿时间:2005-07-30

Study on Remote Sensing of Methane Leakage Using a Tunable Diode Laser
FAN Hong,GAO Xiao-ming,BAO Jian,WANG Xia,HUANG Teng,HUANG Wei,CAO Zhen-song,ZHANG Wei-jun.Study on Remote Sensing of Methane Leakage Using a Tunable Diode Laser[J].Spectroscopy and Spectral Analysis,2006,26(8):1423-1427.
Authors:FAN Hong  GAO Xiao-ming  BAO Jian  WANG Xia  HUANG Teng  HUANG Wei  CAO Zhen-song  ZHANG Wei-jun
Institution:1. Laboratory of Environmental Spectroscopy, Anhui Institute of Optics and Fine Mechanics, Chinese Academy ot Sclences, Hefei 230031, China ;2. School of Instrument Science and Opto-Electronic Engineering, Hefei University of Technology, Hefei 230009, China
Abstract:The leak of natural gas is not only an economic loss, but also the fountain of danger. Conventional detection techniques of natural gas pipe leak have low efficiency and slow respond time, therefore, it is difficult for them to suit practice application. Optical sensors based on NIR tunable diode laser absorption spectroscopy were widely used because of high sensitivity, small volume and less maintenance. In the present paper, a portable remote sensor of natural gas pipeline leak was reported. The sensor used a ratio of second to first harmonic signals as calibration method, and the results show a good consistency between the concentrations and the ratios of second to first harmonic signals. The effect of different topographic scattering targets on the ratio detection was measured and analyzed. The results show that the ratio of second to first harmonic signals can be used in practical application.
Keywords:Tunable diode laser  Natural gas  Remote sense  Wavelength modulation
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