Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 4,
  • Issue 2,
  • pp. 116-118
  • (2006)

Large scale gas leakage monitoring with tunable diode laser absorption spectroscopy

Not Accessible

Your library or personal account may give you access

Abstract

Tunable diode laser absorption spectroscopy (TDLAS) has been widely employed in atmospheric trace gases detecting and industrial control due to its high sensitivity, selectivity, and rapidity of response. An open path TDLAS system is developed for monitoring large scale methane leakage around the oil refinery. The tunable distributed feedback (DFB) diode laser emits at 1.65 um. In order to enhance the sensitivity, a system combining long open path and second harmonic detection technique is developed. The test results show that the time resolution is less than 0.1 second and the detection limit is lower than 3.6 ppmv. This system is adapted for monitoring a large scale methane concentration changing trend instead of measuring its absolute concentration.

© 2005 Chinese Optics Letters

PDF Article
More Like This
Development of a tunable diode laser absorption sensor for online monitoring of industrial gas total emissions based on optical scintillation cross-correlation technique

Zhirong Zhang, Tao Pang, Yang Yang, Hua Xia, Xiaojuan Cui, Pengshuai Sun, Bian Wu, Yu Wang, Markus W. Sigrist, and Fengzhong Dong
Opt. Express 24(10) A943-A955 (2016)

Open multipass absorption cell for in situ monitoring of stratospheric trace gas with telecommunication laser diodes

Georges Durry, Théodore Danguy, and Ivan Pouchet
Appl. Opt. 41(3) 424-433 (2002)

Near-infrared tunable diode laser absorption spectroscopy-based determination of carbon dioxide in human exhaled breath

Cunguang Lou, Congrui Jing, Xin Wang, Yuhao Chen, Jiantao Zhang, Kaixuan Hou, Jianquan Yao, and Xiuling Liu
Biomed. Opt. Express 10(11) 5486-5496 (2019)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved