Application of Micro Quartz Tuning Fork in Trace Gas Sensing by Use of Quartz-Enhanced Photoacoustic Spectroscopy

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dc.citation.articleNumber5240
dc.citation.issueNumber23
dc.citation.journalTitleSensors
dc.citation.volumeNumber19
dc.contributor.authorLin, Haoyang
dc.contributor.authorHuang, Zhao
dc.contributor.authorKan, Ruifeng
dc.contributor.authorZheng, Huadan
dc.contributor.authorLiu, Yihua
dc.contributor.authorLiu, Bin
dc.contributor.authorDong, Linpeng
dc.contributor.authorZhu, Wenguo
dc.contributor.authorTang, Jieyuan
dc.contributor.authorYu, Jianhui
dc.contributor.authorChen, Zhe
dc.contributor.authorTittel, Frank K.
dc.date.accessioned2020-02-14T16:39:59Z
dc.date.available2020-02-14T16:39:59Z
dc.date.issued2019
dc.description.abstractA novel quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor based on a micro quartz tuning fork (QTF) is reported. As a photoacoustic transducer, a novel micro QTF was 3.7 times smaller than the usually used standard QTF, resulting in a gas sampling volume of ~0.1 mm3. As a proof of concept, water vapor in the air was detected by using 1.39 μm distributed feedback (DFB) laser. A detailed analysis of the performance of a QEPAS sensor based on the micro QTF was performed by detecting atmosphere H2O. The laser focus position and the laser modulation depth were optimized to improve the QEPAS excitation efficiency. A pair of acoustic micro resonators (AmRs) was assembled with the micro QTF in an on-beam configuration to enhance the photoacoustic signal. The AmRs geometry was optimized to amplify the acoustic resonance. With a 1 s integration time, a normalized noise equivalent absorption coefficient (NNEA) of 1.97 × 10−8 W·cm−1·Hz−1/2 was achieved when detecting H2O at less than 1 atm.
dc.identifier.citationLin, Haoyang, Huang, Zhao, Kan, Ruifeng, et al.. "Application of Micro Quartz Tuning Fork in Trace Gas Sensing by Use of Quartz-Enhanced Photoacoustic Spectroscopy." <i>Sensors,</i> 19, no. 23 (2019) MDPI: https://doi.org/10.3390/s19235240.
dc.identifier.digitalsensors-19-05240
dc.identifier.doihttps://doi.org/10.3390/s19235240
dc.identifier.urihttps://hdl.handle.net/1911/108064
dc.language.isoeng
dc.publisherMDPI
dc.rightsThis is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subject.keywordquartz tuning fork
dc.subject.keywordphotoacoustic spectroscopy
dc.subject.keywordquartz-enhanced photoacoustic spectroscopy
dc.subject.keywordacoustic detection module
dc.titleApplication of Micro Quartz Tuning Fork in Trace Gas Sensing by Use of Quartz-Enhanced Photoacoustic Spectroscopy
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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