| 基于光谱吸收型光纤传感器的煤矿瓦斯测量技术 |
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| 引用本文： | 肖尚辉,汤俊.基于光谱吸收型光纤传感器的煤矿瓦斯测量技术[J].光学技术,2012,38(5):555-559. |
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| 作者姓名： | 肖尚辉 汤俊 |
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| 作者单位： | 肖尚辉:电子科技大学通信抗干扰重点实验室, 成都 611731宜宾学院物理与电子工程学院, 四川 宜宾 644007
汤俊:川煤集团芙蓉煤矿有限公司, 四川 宜宾 644002
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| 基金项目： | 四川省科技厅科技支撑项目(2011GZ0254); 宜宾市科技局重点科技项目 (2010GY023) |
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| 摘 要： | 甲烷是瓦斯的主要成分,是易燃易爆的气体。介绍了瓦斯的光谱特性以及光谱吸收法测量甲烷气体浓度的原理,给出了光谱吸收型光纤瓦斯气体传感器的主要进展和技术路径,包括差分吸收测量法和谐波吸收测量法。通过分析可看出,光谱吸收型光纤瓦斯传感器以其优良的特性得到了广泛关注,其中差分吸收法的抗干扰能力强,系统可靠性高,具有较强的工程应用价值。
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| 关 键 词： | 瓦斯测量 光纤传感器 光谱吸收 |
| 收稿时间： | 2012/5/2 |
Methane measurement methods based on the fiber optic sensing techniques with spectrum absorption |
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| XIAO Shanghui,TANG Jun.Methane measurement methods based on the fiber optic sensing techniques with spectrum absorption[J].Optical Technique,2012,38(5):555-559. |
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| Authors: | XIAO Shanghui TANG Jun |
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| Institution: | 1.National Key Lab of Communication,University of Electronic Science and Technology of China,Chengdu 611731,China)(2.School of Physics and Electronic Engineering,Yibin University,Yibin 644007,China)(3.Sichuan Coal Group Furong Company,Yibin 644002,China) |
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| Abstract: | CH4, which is the main component of methane, is flammable and explosive. The optical spectral properties of methane and the principle of absorption based fiber optic methane sensing techniques are introduced. Some techniques progress of fiber optic methane sensor with spectrum absorption, including differential absorption method and harmonic detection method, are given. It is clear that the spectrum absorption based fiber optic methane sensing techniques are the hotspot in the research area of methane measurement owing to good characteristics. These sensors will be widely used in the safety monitoring of coal mine. |
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| Keywords: | methane measurement optical fiber sensors spectrum absorption |
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