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| 基于光腔环路衰荡光谱技术气体浓度测量的研究 | |
| 引用本文： | 李文超,沙晓鹏,刘正君,李志全,冯蕾,马伯华.基于光腔环路衰荡光谱技术气体浓度测量的研究[J].应用光学,2009,30(5):831-835. |
| 作者姓名： | 李文超 沙晓鹏 刘正君 李志全 冯蕾 马伯华 |
| 作者单位： | 1. 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 2. 燕山大学,电气工程学院,河北,秦皇岛,066004 3. 中国人民解放军装备指挥技术学院,北京,101416 4. 秦皇岛职业技术学院,河北,秦皇岛,066100 |
| 基金项目： | 国家自然科学基金资助项目，河北自然科学基金资助项目，教育部高等学校博士学科点专项科研基金资助项目 |
| 摘 要： | 为了实现痕量气体在线测量与分析,设计了光纤环路光腔衰荡多组分气体浓度在线测量系统;基于非线性光腔衰荡技术,利用所设计的系统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和1 ppb的分辨率.实验表明该方法对痕量气体的在线测量是有效的. |
| 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 |
| 收稿时间： | 2009/6/14 |
Gas concentration measurement based on fiber-circled cavity ring-down method |
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| LI Wen-chao,SHA Xiao-peng,LIU Zheng-jun,LI Zhi-quan,FENG Lei,MA Bo-hua.Gas concentration measurement based on fiber-circled cavity ring-down method[J].Journal of Applied Optics,2009,30(5):831-835. | |
| Authors: | LI Wen-chao SHA Xiao-peng LIU Zheng-jun LI Zhi-quan FENG Lei MA Bo-hua |
| Abstract: | In order to realize the trace gas concentration on-line measurement and analysis，a multi-type gas concentration on-line measurement system based on fiber-circled cavity ring-down method was designed and developed. Based on the nonlinear optical cavity ring-down technology, the experimental analysis of the gas concentration in-situ measurement with such system was performed. The gas-to-light absorption characteristics of the same gas with different concentrations changed with time and their relationship was given. The resolution of concentration measurement reaches 1ppb. The experiment proves that the system can be used to measure trace gas concentration effectively. |
| Keywords: | gas concentration on-line measurement ring-down characteristics Erbium doped fiber amplifier variable optical attenuator |
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