| 用于痕量气体浓度测量的比较式光腔衰荡气室设计与研究 |
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| 引用本文： | 马伯华,李文超,沙晓鹏,刘正君,李志全,冯蕾. 用于痕量气体浓度测量的比较式光腔衰荡气室设计与研究[J]. 光学与光电技术, 2009, 7(4): 72-74,82 |
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| 作者姓名： | 马伯华 李文超 沙晓鹏 刘正君 李志全 冯蕾 |
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| 作者单位： | 秦皇岛职业技术学院,河北,秦皇岛,066100;秦皇岛职业技术学院,河北,秦皇岛,066100;河北工业大学信息学院,天津,300130;燕山大学电气工程学院,河北,秦皇岛,066004;中国人民解放军装备指挥技术学院,北京,101416 |
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| 基金项目： | 国家自然基金,河北自然基金,教育部高等学校博士学科点专项科研基金 |
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| 摘 要： | 在采用光腔衰荡技术实现痕量气体浓度测量时,设计了用于痕量气体浓度测量的比较式光腔衰荡气室。通过对双探测器的比较及对数线性化,利用所设计的系统及其气室对气体浓度在线测量并进行了实验分析。得出了同种气体不同浓度时光的吸收程度随时间变化的规律与特性,实现了测量分辨力为10^-9的测量结果。
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| 关 键 词： | 气体浓度 在线测量 衰荡特性 掺铒光纤放大器 可调光衰减器 |
Research on Contrastable Optical Ring-Down Cavity Micro-Gas Cell Applied on Trace Gases Concentration Measurement |
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| MA Bo-hua,LI Wen-chao,SHA Xiao-peng,LIU Zheng-jun,LI Zhi-quan,FENG Lei. Research on Contrastable Optical Ring-Down Cavity Micro-Gas Cell Applied on Trace Gases Concentration Measurement[J]. optics&optoelectronic technology, 2009, 7(4): 72-74,82 |
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| Authors: | MA Bo-hua LI Wen-chao SHA Xiao-peng LIU Zheng-jun LI Zhi-quan FENG Lei |
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| Affiliation: | 1 Qinhuangdao College of Profession Technology, Qinhuangdao 066100, China; 2 School of Information, Hebei University of Technology, Tianjin 300130, China; 3 Institute of Electric Engineering, Yanshan University, Qinhuangdao 066004, China; 4 Academy of Equipment Command and Technology of PLA, Beijing 101416, China ) |
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| Abstract: | The contrastable optical ring-down cavity micro-gas cell is designed for the trace gases concentration measurement used ring-down cavity method. The gas concertration is on line measused by comparing the dual dectors and the linearization of the logarithm. The experiment is carried out by the designed system and the gas cavity. The relationship between the gasto-light obsorption characterics and the time is obtained when the concentrations are different. The results show that the resolution of concentration is 1×10^-9. |
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| Keywords: | gas concentration on-line measurement ring-down characteristics Erbium doped fiber amplifier variable optical attenuator |
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