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氨气高精度激光光谱检测装置的设计及实现

杨天悦 宫廷 郭古青 孙小聪 田亚莉 邱选兵 何秋生 高晓明 李传亮

杨天悦, 宫廷, 郭古青, 孙小聪, 田亚莉, 邱选兵, 何秋生, 高晓明, 李传亮. 氨气高精度激光光谱检测装置的设计及实现[J]. 中国光学(中英文), 2023, 16(5): 1129-1136. doi: 10.37188/CO.2023-0023
引用本文: 杨天悦, 宫廷, 郭古青, 孙小聪, 田亚莉, 邱选兵, 何秋生, 高晓明, 李传亮. 氨气高精度激光光谱检测装置的设计及实现[J]. 中国光学(中英文), 2023, 16(5): 1129-1136. doi: 10.37188/CO.2023-0023
YANG Tian-yue, GONG Ting, GUO Gu-qing, SUN Xiao-cong, TIAN Ya-li, QIU Xuan-bing, HE Qiu-sheng, GAO Xiao-ming, LI Chuan-liang. Design and achievement of a device for high-precision ammonia gas detection based on laser spectroscopy[J]. Chinese Optics, 2023, 16(5): 1129-1136. doi: 10.37188/CO.2023-0023
Citation: YANG Tian-yue, GONG Ting, GUO Gu-qing, SUN Xiao-cong, TIAN Ya-li, QIU Xuan-bing, HE Qiu-sheng, GAO Xiao-ming, LI Chuan-liang. Design and achievement of a device for high-precision ammonia gas detection based on laser spectroscopy[J]. Chinese Optics, 2023, 16(5): 1129-1136. doi: 10.37188/CO.2023-0023

氨气高精度激光光谱检测装置的设计及实现

doi: 10.37188/CO.2023-0023
基金项目: 国家自然科学基金(No. U1810129,No. 52076145,No. 12304403);山西省留学人员科技活动项目(No. 20230031);山西省省筹资金资助回国留学人员科研资助项目(No. 2023-151);山西省基础研究计划(No. 202203021222204);太原科技大学科研启动基金(No. 20222008,No. 20222132);山西省科技成果转化引导专项项目(No. 201904D131025)
详细信息
    作者简介:

    杨天悦(1997—),男,天津人,硕士研究生,2020年于太原科技大学获得学士学位,主要从事激光光谱学及应用等方面的研究。E-mail:1330944702@qq.com

    宫 廷(1992—),女,山西忻州人,博士,讲师,硕士生导师,主要从事激光光谱学及应用等方面的研究。E-mail:gongting@tyust.edu.cn

    郭古青(1986—),男,山西阳泉人,博士,副教授,硕士生导师,主要从事新型材料表征方法的研究。E-mail:2016035@tyust.edu.cn

    孙小聪(1996—),女,山西运城人,博士,讲师,主要从事量子光学等方面的研究。E-mail:sunxiaocong@tyust.edu.cn

    田亚莉(1991—),女,山西吕梁人,博士,讲师,主要从事原子与分子物理方面的研究。E-mail:tianyali@tyust.edu.cn

    邱选兵(1980—),男,四川内江人,博士,教授,博士生导师,主要从事激光光谱技术、嵌入式系统的研究。E-mail:qiuxb@tyust.edu.cn

    何秋生(1977—),男,山西介休人,博士,教授,博士生导师,主要从事有机污染物相关的大气环境、大气化学和污染修复研究。E-mail:heqs@tyust.edu.cn

    高晓明(1965—),男,安徽南陵人,博士,研究员,博士生导师,主要从事高灵敏度光谱检测技术及应用的研究。E-mail:xmgao@aiofm.ac.cn

    李传亮(1983—),男,山东沂源人,博士,教授,博士生导师,2011年于华东师范大学获得博士学位,主要从事激光光谱学及应用、光电传感装备的研究。E-mail:clli@tyust.edu.cn

  • 中图分类号: O433.5+1

Design and achievement of a device for high-precision ammonia gas detection based on laser spectroscopy

Funds: Supported by National Natural Science Foundation of China (No. U1810129, No. 52076145, No. 12304403); Fund Program for the Scientific Activities of Selected Returned Overseas Professionals in Shanxi Province (No. 20230031); Shanxi Scholarship Council of China (No.2023-151); Fundamental Research Program of Shanxi Province (No. 202203021222204); Taiyuan University of Science and Technology Scientific Research Initial Funding (No. 20222008, No. 20222132); Transformation of Scientific and Technological Achievements Fund of Shanxi Province (No. 201904D131025)
More Information
  • 摘要:

    氨气排放会对环境以及人体健康造成危害,因此对环境中氨气浓度的高精度监测显得尤为重要。本文基于具有高灵敏度、高响应速度等优点的离轴积分腔输出光谱技术(OA-ICOS)对氨气高精度检测装置进行设计。使用基长30 cm装有反射率为99.99%的高反镜的光学谐振腔作为气体吸收池,实现了近3000 m的光程,将中心波长为1528 nm的分布反馈式激光器(DFB)调谐至6548.611 cm−1和6548.798 cm−1附近,在常温18.6 kPa的气压下对1×10−5~5×10−5范围内NH3进行了检测。测量结果表明NH3浓度与信号幅值的线性拟合度R2可达0.99979。使用Allan方差对实验数据进行分析得到13 s后系统的平均检测极限为9.8×10−9,在103 s时系统的最低检测极限可达7×10−9S/N~1)。实验结果表明,该检测装置具有良好的稳定性与高灵敏度,满足对氨气高精度检测的需求,本文研究为国内自主研发痕量气体高精度检测设备提供了技术经验。

     

  • 图 1  (a)检测装置原理图及(b)谐振腔结构示意图

    Figure 1.  (a) Schematic diagram of detection device and (b) schematic diagram of resonator structure

    图 2  检测装置实物图

    Figure 2.  Detection device diagram

    图 3  (a)体积分数为1×10−5 NH3吸收信号及(b)去除背景信号后的NH3吸收信号

    Figure 3.  (a)NH3 absorption signal with volume fraction of 1×10−5; (b) NH3 absorption signal after removing background signal

    图 4  不同浓度下的NH3测量信号

    Figure 4.  Measured NH3 signals at different concentrations

    图 5  NH3浓度与NH3吸收信号幅度间的线性关系

    Figure 5.  Linear relationship between the real concentrations and the fitted ones of NH3 absorption signal

    图 6  (a)体积分数为1×10−5的NH3测量2000 s的原始数据及(b)Allan方差分析图

    Figure 6.  (a) Row data of NH3 with concentration of 1×10−5 over 2000 s; (b) Allan variance as a function of integration time

    图 7  体积分数为1×10−5 NH3标准气体的检测浓度分布图,红线为高斯函数拟合结果

    Figure 7.  Detection concentration distribution diagram of NH3 standard gas with concentration of 1×10−5. The red line is a Gaussian profile fitting

    表  1  各检测方法对比表

    Table  1.   Comparison table of various detection methods

    序号研究者检测方法吸收线位置
    (cm−1)
    吸收线强
    (cm/mol)
    光程
    (m)
    检测极限
    (1×10−6
    1Claps [11]VOAS6528.761.1741×10−21360.7
    2Miller [12]WMS1103.441.5141×10−19600.0002
    3Guo [13]WMS 2f/1f6599.91.3871×10−21150.16
    4Baer [15]OA-ICOS6528.91.350×10−2150350.002
    5Jia [16]OA-ICOS&
    WMS
    6528.761.174×10−21115.40.274
    6Our workOA-ICOS6548.611.879×10−2130000.007
    6548.791.847×10−21
    注:VOAS (Vibrational overtone absorption spectroscopy); WMS (Wavelength modulation spectroscopy); OA-ICOS (Off-axis integrated cavity output spectroscopy).
    下载: 导出CSV
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  • 收稿日期:  2023-02-04
  • 修回日期:  2023-02-24
  • 录用日期:  2023-04-13
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