| 基于1665 nm激光器测量甲烷气体浓度的研究 |
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| 引用本文： | 安宇鹏,宋振宇,王一丁. 基于1665 nm激光器测量甲烷气体浓度的研究[J]. 激光与红外, 2010, 40(1): 28-31 |
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| 作者姓名： | 安宇鹏 宋振宇 王一丁 |
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| 作者单位： | 吉林大学电子科学与工程学院集成光电子学国家重点联合实验室吉林大学实验区,吉林,长春,130012 |
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| 摘 要： | 介绍了一种以1665 nm分布反馈(DFB)激光器为光源,使用双光路差分吸收光谱技术(DAS)测量甲烷浓度的检测系统。双光路差分吸收光谱技术能有效抑制由于光源光强变化、探测器零点漂移等因素所引起的测量的不准确。文中对这种检测方法进行了理论和实验分析,系统的最小探测浓度为100×10-6,响应时间约为14 s。
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| 关 键 词： | 分布反馈激光器 甲烷 差分吸收光谱技术 传感器 |
Sensitive methane detection based on 1665 nm DFB laser |
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| AN Yu-peng,SONG Zhen-yu,WANG Yi-ding. Sensitive methane detection based on 1665 nm DFB laser[J]. Laser & Infrared, 2010, 40(1): 28-31 |
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| Authors: | AN Yu-peng SONG Zhen-yu WANG Yi-ding |
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| Affiliation: | State Key Laboratory on Integrated Optoelectronics;College of Electronic Science and Engineering;Jilin University;Changchun 130012;China |
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| Abstract: | There has been considerable interest in methane sensors based on infrared absorption spectroscopy recently for industrial detection and environment monitoring.A DFB LD in the 1665nm region has been utilized as a light source for differential absorption measurement in the sensing of methane.The light output from the DFB LD is split into two beams by a half mirror.One of the beams is used for sensing methane(sensing light beam) while the other is used for wavelength calibration(reference beam).The sensing lig... |
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| Keywords: | distributed feed back laser methane differential absorption spectrum sensor |
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