Highly sensitive and selective CO sensor using a 2.33 μm diode laser and wavelength modulation spectroscopy

Simple item page
dc.citation.firstpage24318en_US
dc.citation.issueNumber19en_US
dc.citation.journalTitleOptics Expressen_US
dc.citation.lastpage24328en_US
dc.citation.volumeNumber26en_US
dc.contributor.authorCui, Ruyueen_US
dc.contributor.authorDong, Leien_US
dc.contributor.authorWu, Hongpengen_US
dc.contributor.authorLi, Shangzhien_US
dc.contributor.authorZhang, Leien_US
dc.contributor.authorMa, Weiguangen_US
dc.contributor.authorYin, Wangbaoen_US
dc.contributor.authorXiao, Liantuanen_US
dc.contributor.authorJia, Suotangen_US
dc.contributor.authorTittel, Frank K.en_US
dc.date.accessioned2018-11-12T15:39:59Zen_US
dc.date.available2018-11-12T15:39:59Zen_US
dc.date.issued2018en_US
dc.description.abstractA ppm-level CO sensor based on a 2f wavelength modulation spectroscopy (2f-WMS) technique was developed for the application of SF6 decomposition analysis in an electric power system. A detailed investigation of the optimum target line selection was carried out to avoid spectral interference from high purity SF6 in a wide wavelength range. A diode laser emitting at 2.33 μm and a 14.5-m multipass gas cell (MGC) was employed to target the R(6) line of the CO first overtone band and increase the optical path, respectively, thus resulting in a minimum detection sensitivity of 1 ppm. A Levenberg-Marquardt nonlinear least-squares fit algorithm makes full use of the information from all data points of the 2f spectrum and as a result, a measurement precision of ~40 ppb was achieved with a data update rate of 0.6 s. The sensor performance was also evaluated in terms of the gas flow rate, stability, and linearity. The results showed that the best operating condition with a precision of 6 ppb can be achieved by increasing the gas flow rate to the value that matches the optimum averaging time of 48 s.en_US
dc.identifier.citationCui, Ruyue, Dong, Lei, Wu, Hongpeng, et al.. "Highly sensitive and selective CO sensor using a 2.33 μm diode laser and wavelength modulation spectroscopy." <i>Optics Express,</i> 26, no. 19 (2018) Optical Society of America: 24318-24328. https://doi.org/10.1364/OE.26.024318.en_US
dc.identifier.digitaloe-26-19-24318en_US
dc.identifier.doihttps://doi.org/10.1364/OE.26.024318en_US
dc.identifier.urihttps://hdl.handle.net/1911/103321en_US
dc.language.isoengen_US
dc.publisherOptical Society of Americaen_US
dc.rights© 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreementen_US
dc.rights.urihttps://www.osapublishing.org/library/license_v1.cfm#VOR-OAen_US
dc.titleHighly sensitive and selective CO sensor using a 2.33 μm diode laser and wavelength modulation spectroscopyen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
oe-26-19-24318.pdf
Size:
2.71 MB
Format:
Adobe Portable Document Format
Download
Collections
Faculty Publications
ECE Publications