Abstract

Molecular gases are highly relevant in healthcare, production control, safety, and environmental monitoring. They often appear in small concentrations. The measurement of trace gases has increasingly become a key technique in those domains. Quartz-enhanced photoacoustic spectroscopy (QEPAS) is a suitable method that can provide the required low detection limits in such applications at comparatively low cost and small size. For mobile implementation, the size of an entire sensor unit matters. In this paper, we present a QEPAS sensor that fits into a standard butterfly package, its characterization, and its application on ${{\rm CH}_4}$ and ${{\rm CO}_2}$.

© 2021 Optical Society of America

Full Article  |  PDF Article
More Like This
QEPAS sensor for breath analysis: a behavior of pressure

Tobias Milde, Morten Hoppe, Herve Tatenguem, Mario Mordmüller, James O’Gorman, Ulrike Willer, Wolfgang Schade, and Joachim Sacher
Appl. Opt. 57(10) C120-C127 (2018)

Quartz-enhanced photoacoustic-photothermal spectroscopy for trace gas sensing

Yinqiu Hu, Shunda Qiao, Ying He, Ziting Lang, and Yufei Ma
Opt. Express 29(4) 5121-5127 (2021)

Comparison of the spectral excitation behavior of methane according to InP, GaSb, IC, and QC lasers as excitation source by sensor applications

Tobias Milde, Morten Hoppe, Herve Tatenguem, Christian Assmann, Wolfgang Schade, and Joachim Sacher
Appl. Opt. 58(10) C84-C91 (2019)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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

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 OSA member, or as an authorized user of your institution.

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

Figures (10)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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