Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 9,
  • Issue 6,
  • pp. 060101-
  • (2011)

Method of sensitivity improving in the non-dispersive infrared gas analysis system

Not Accessible

Your library or personal account may give you access

Abstract

A method of interference correction for improving the sensitivity of non-dispersive infrared (NDIR) gas analysis system is demonstrated. Based on the proposed method, the interference due to water vapor and carbon dioxide in the NDIR NO analyzer is corrected. After interference correction, the absorbance signal at the NO filter channel is only controlled by the absorption of NO, and the sensitivity of the analyzer is improved greatly. In the field experiment for pollution source emission monitoring, the concentration trend of NO monitored by NDIR analyzer is in good agreement with the differential optical absorption spectroscopy NO analyzer. Small variations of NO concentration can also be resolved, and the measuring correlation coefficient of the two analyzers is 94.28%.

© 2011 Chinese Optics Letters

PDF Article
More Like This
Alternative method for concentration retrieval in differential optical absorption spectroscopy atmospheric-gas pollutant measurements

Fabián A. Videla, Daniel C. Schinca, and Jorge O. Tocho
Appl. Opt. 42(18) 3653-3661 (2003)

Highly sensitive Raman system for dissolved gas analysis in water

Dewang Yang, Jinjia Guo, Qingsheng Liu, Zhao Luo, Jingwen Yan, and Ronger Zheng
Appl. Opt. 55(27) 7744-7748 (2016)

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