Detection and Analysis of Ammonia Absorption Line at 1.5 μm Region Based on Photoacoustic Spectroscopy

CAO Xin-dan; LIU Xian-yong; MENG Gui; NI Shi-hu

doi:10.3788/fgxb20123309.1025

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Detection and Analysis of Ammonia Absorption Line at 1.5 μm Region Based on Photoacoustic Spectroscopy

更新时间：2020-08-12

- Detection and Analysis of Ammonia Absorption Line at 1.5 μm Region Based on Photoacoustic Spectroscopy
- Chinese Journal of Luminescence Vol. 33, Issue 9, Pages: 1025-1029(2012)
- 作者机构：
  
  西南科技大学信息工程学院,四川绵阳,621010
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20123309.1025
  CLC： O433.1
- Received：19 June 2012，
  
  Revised：21 July 2012，
  
  Published：10 September 2012
- 稿件说明：
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曹新丹, 刘先勇, 蒙瑰, 倪士虎. 基于光声光谱技术的1.5 μm波段 NH<sub>3</sub>吸收谱线测量与分析[J]. 发光学报, 2012,33(9): 1025-1029

CAO Xin-dan, LIU Xian-yong, MENG Gui, NI Shi-hu. Detection and Analysis of Ammonia Absorption Line at 1.5 μm Region Based on Photoacoustic Spectroscopy[J]. Chinese Journal of Luminescence, 2012,33(9): 1025-1029
曹新丹, 刘先勇, 蒙瑰, 倪士虎. 基于光声光谱技术的1.5 μm波段 NH<sub>3</sub>吸收谱线测量与分析[J]. 发光学报, 2012,33(9): 1025-1029 DOI： 10.3788/fgxb20123309.1025.

CAO Xin-dan, LIU Xian-yong, MENG Gui, NI Shi-hu. Detection and Analysis of Ammonia Absorption Line at 1.5 μm Region Based on Photoacoustic Spectroscopy[J]. Chinese Journal of Luminescence, 2012,33(9): 1025-1029 DOI： 10.3788/fgxb20123309.1025.

摘要

的检测具有广泛的应用

采用光声法检测NH

是当前研究的热点

而确定NH

的吸收谱线则是实现光声法检测NH

的前提。采用外腔可调谐半导体激光器构造了光声气体检测系统

检测了NH

的近红外吸收谱线

获得了常温常压下NH

在1 515~1 532 nm范围内的吸收光谱。实验确认了NH

在1 515.2

1 516.0

1 518.0

1 519.9

1 522.4

1 527.0

1 531.7 nm处存在强吸收。HITRAN 2004光谱数据库在近红外1.5 μm波段NH

的吸收谱线数据未见报道

该结果为研究光声法检测NH

提供了更多可选择的吸收谱线。

Abstract

Ammonia detecting has a wide range of applications

and currently attracts considerable attention through the photoacoustic. The premise of detecting is to determine the absorption lines of ammonia. At normal pressure and temperature

the absorption spectrum of ammonia at the range of 1 515~1 532 nm was measured with an external cavity tunable semiconductor laser through the photoacoustic spectroscopy gas detection theory. Seven ammonia absorption lines

at 1 515.2

1 516.0

1 518.0

1 519.9

1 522.4

1 527.0

1 531.7 nm

were scanned by resetting the laser tuning range and were confirmed having strength absorption. The spectroscopic database of HITRAN 2004 do not contain ammonia spectrum in the 1.5 μm region

and the results of this paper provided more ammonia absorption lines to choose for the ammonia detection research based on photoacoustic.

关键词

Keywords

references

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Claps R, Englich F V, Leleux D P, et al. Ammonia detection by use of near-infrared diode-laser-based overtone spectroscopy [J]. Applied Optics, 2001, 40(24):4387-4394.

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