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Sensitive detection of oxygen using a diffused integrating cavity as a gas absorption cell

Zhou, Xue; Yu, Jia; Wang, Lin; Gao, Qiang LU and Zhang, Zhiguo (2017) In Sensors and Actuators, B: Chemical 241. p.1076-1081
Abstract

In this study, an oxygen monitoring system was demonstrated for sensitive oxygen detection. The system is based on tunable diode laser absorption spectroscopy (TDLAS) and wavelength modulation spectroscopy (WMS). Stable 2nd-harmonic signals of oxygen were detected by measuring the oxygen P9 absorption line at 764.38. nm. In the detection, a cubic diffuse integrating cavity was employed as a gas absorption cell to increase the optical path length and achieve a higher sensitivity. In addition, to perform automatic gas concentration measurements, a data recording and analyzing program based on the National Instruments LabVIEW software platform was developed. An uncertainty of 0.05% and a detection sensitivity of 350 ppmv were obtained... (More)

In this study, an oxygen monitoring system was demonstrated for sensitive oxygen detection. The system is based on tunable diode laser absorption spectroscopy (TDLAS) and wavelength modulation spectroscopy (WMS). Stable 2nd-harmonic signals of oxygen were detected by measuring the oxygen P9 absorption line at 764.38. nm. In the detection, a cubic diffuse integrating cavity was employed as a gas absorption cell to increase the optical path length and achieve a higher sensitivity. In addition, to perform automatic gas concentration measurements, a data recording and analyzing program based on the National Instruments LabVIEW software platform was developed. An uncertainty of 0.05% and a detection sensitivity of 350 ppmv were obtained using this system.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Absorption spectroscopy, Integrating cavity, Oxygen sensor, Tunable diode laser
in
Sensors and Actuators, B: Chemical
volume
241
pages
6 pages
publisher
Elsevier
external identifiers
  • scopus:85028270482
  • scopus:85001698760
  • wos:000393253700126
ISSN
0925-4005
DOI
10.1016/j.snb.2016.10.033
language
English
LU publication?
yes
id
2e83055c-bd61-46a3-9e29-947569f28205
date added to LUP
2017-02-01 09:22:28
date last changed
2018-05-13 04:28:17
@article{2e83055c-bd61-46a3-9e29-947569f28205,
  abstract     = {<p>In this study, an oxygen monitoring system was demonstrated for sensitive oxygen detection. The system is based on tunable diode laser absorption spectroscopy (TDLAS) and wavelength modulation spectroscopy (WMS). Stable 2nd-harmonic signals of oxygen were detected by measuring the oxygen P9 absorption line at 764.38. nm. In the detection, a cubic diffuse integrating cavity was employed as a gas absorption cell to increase the optical path length and achieve a higher sensitivity. In addition, to perform automatic gas concentration measurements, a data recording and analyzing program based on the National Instruments LabVIEW software platform was developed. An uncertainty of 0.05% and a detection sensitivity of 350 ppmv were obtained using this system.</p>},
  author       = {Zhou, Xue and Yu, Jia and Wang, Lin and Gao, Qiang and Zhang, Zhiguo},
  issn         = {0925-4005},
  keyword      = {Absorption spectroscopy,Integrating cavity,Oxygen sensor,Tunable diode laser},
  language     = {eng},
  pages        = {1076--1081},
  publisher    = {Elsevier},
  series       = {Sensors and Actuators, B: Chemical},
  title        = {Sensitive detection of oxygen using a diffused integrating cavity as a gas absorption cell},
  url          = {http://dx.doi.org/10.1016/j.snb.2016.10.033},
  volume       = {241},
  year         = {2017},
}