基于TDLAS和ICL的紧凑中红外痕量气体探测系统

李春光; 董磊; 王一丁; 林君

doi:10.3788/OPE.20182608.1855

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基于TDLAS和ICL的紧凑中红外痕量气体探测系统

激光光谱技术 | 更新时间：2020-08-13

- 基于TDLAS和ICL的紧凑中红外痕量气体探测系统
- Compact mid-infrared trace gas detection system based on TDLAS and ICL
- 光学精密工程 2018年26卷第8期页码：1855-1861
- 作者机构：
  
  1.吉林大学仪器科学与电气工程学院, 吉林长春 130061
  2.山西大学激光光谱研究所量子光学与光量子器件国家重点实验室, 山西太原 030006
  3.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, 吉林长春 130012
  4.吉林大学生物与农业工程学院, 吉林长春 130022
- 作者简介：
  
  [ "李春光(1986-), 男, 吉林长春人, 助理研究员, 2012年于长春理工大学获得硕士学位, 2016年于吉林大学获得博士学位, 现为吉林大学仪器科学与电气工程学院博士后, 主要从事气体传感器和激光光谱方面的研究。E-mail:lcg0213@126.com" ]
  林君(1954-), 男, 教授, 博士生导师, 1982年、1987年于长春地质学院分别获得学士、硕士学位, 主要研究方向为地球探测技术及仪器。E-mail:lin_jun@jlu.edu.cn LIN Jun, E-mail:lin_jun@jlu.edu.cn
- 基金信息：
  
  博士后创新人才支持计划项目(BX201700100);中国博士后科学基金资助项目(2017M621206);国家自然科学基金资助项目(61622503);国家自然科学基金资助项目(61575113);国家自然科学基金资助项目(61307124);国家自然科学基金资助项目(61805099)
- DOI：10.3788/OPE.20182608.1855
  中图分类号： O657.38
- 收稿日期：2018-04-23，
  
  录用日期：2018-5-29，
  
  纸质出版日期：2018-08-25
- 稿件说明：
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李春光, 董磊, 王一丁, 等. 基于TDLAS和ICL的紧凑中红外痕量气体探测系统[J]. 光学精密工程, 2018,26(8):1855-1861.

Chun-guang LI, Lei DONG, Yi-ding WANG, et al. Compact mid-infrared trace gas detection system based on TDLAS and ICL[J]. Optics and precision engineering, 2018, 26(8): 1855-1861.
李春光, 董磊, 王一丁, 等. 基于TDLAS和ICL的紧凑中红外痕量气体探测系统[J]. 光学精密工程, 2018,26(8):1855-1861. DOI： 10.3788/OPE.20182608.1855.

Chun-guang LI, Lei DONG, Yi-ding WANG, et al. Compact mid-infrared trace gas detection system based on TDLAS and ICL[J]. Optics and precision engineering, 2018, 26(8): 1855-1861. DOI： 10.3788/OPE.20182608.1855.

摘要

为了实现基于可调谐激光吸收光谱技术的高检测灵敏度、低功耗、小型中红外痕量气体传感器设计，结合锑化镓（GaSb）ICL和紧凑型多反射气体吸收气室（MPC）研制了基于不同结构传感光学核的两个小型TDLAS传感系统。两个传感光学核的总功率消耗为3.7 W，并通过探测甲烷（CH

）和甲醛（CH

O）分别验证了双层结构和单层结构系统的性能。实验结果表明：CH

和CH

O系统的检测灵敏度分别为5.0 nL/L和3.0 nL/L，测量精度分别为1.4 nL/L和1.0 nL/L。此外，相同配置情况下将两种结构系统应用于甲、乙烷（C

）同步检测，通过对校园环境中甲、乙烷进行连续66 h的监测试验，验证了设计的紧凑型中红外痕量气体检测系统能够稳定有效地工作，基本满足目前民用气体测量的稳定可靠、精度高、抗干扰能力强等要求。

Abstract

Two compact Tunable Diode Laser Absorption Spectroscopy (TDLAS) sensor systems were developed based on different structural optical cores. The two optical cores combine two recent developments; gallium antimonide (GaSb)-based ICL and a compact multipass gas cell (MPC)

with the aim of developing a compact TDLAS-based sensor for mid-IR gas detection with high detection sensitivity and low power consumption. The two-floor structure sensor was used for methane (CH

) measurements and the single-floor structure sensor was used for formaldehyde (CH

O) concentration measurements

with the two optical sensor cores consuming 3.7 W of power. Detection limits of~5 nL/L and~3 nL/L with measurement precisions of~1.4 nL/L and~1 nL/L were achieved for CH

and CH

O concentration measurements

respectively. In addition

the two-structure system was used for CH

and C

detection under the same conditions over a period of 66 h campus. The results show that the sensors worked steadily and effectively. They can satisfy the system requirements of non-contact

online

real-time

high-precision

and rapid signal acquisition

as well as strong anti-jamming and high stability.

关键词

Keywords

references

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