Quartz tuning forks with novel geometries for optoacoustic gas sensing

V. Spagnolo , A. Sampaolo , P. Patimisco , L. Dong , Y. Gupta , Y. Yu , Antonina Geras , M. Giglio , C.C. Calabrese , Tomasz Starecki , G. Scamarcio , Frank K. Tittel

Abstract

We report the successful realization of quartz-enhanced photo-acoustic (QEPAS) sensors employing quartz tuning forks (QTFs) with novel geometrical parameters. We investigated the influence of QTF sizes on the main resonator parameters, in order to identify the best design parameters optimizing the QTF figures of merit for optoacoustic gas sensing. To evaluate the QTF acousto-electric energy conversion efficiency, we operated the QEPAS sensors in the near- IR and selected water vapor as the target gas. QTFs are forced to resonate at both the fundamental and the first overtone vibrational mode frequencies. Our results shows that two QTF designs exhibit an higher quality factor (and consequently an higher QEPAS signal) when operating on the first overtone mode with respect to the fundamental one.
Author V. Spagnolo
V. Spagnolo,,
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, A. Sampaolo
A. Sampaolo,,
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, P. Patimisco
P. Patimisco,,
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, L. Dong
L. Dong,,
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, Y. Gupta
Y. Gupta,,
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, Y. Yu
Y. Yu,,
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, Antonina Geras ISE
Antonina Geras,,
- The Institute of Electronic Systems
, M. Giglio
M. Giglio,,
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, C.C. Calabrese
C.C. Calabrese,,
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, Tomasz Starecki ISE
Tomasz Starecki,,
- The Institute of Electronic Systems
et al.`
Pages 97552L-1- 97552L-8
Publication size in sheets0.5
Book Manijeh Razeghi, Brown Gail J. , Lewis Jay S. (eds.): Proceedings of SPIE 9755, Quantum Sensing and Nano Electronics and Photonics XIII, 2016, SPIE, ISBN 978-1-62-841990-0, [ISSN: 0277-786X , ISSN: 1996-756X (electronic) ], DOI:10.1117/12.2235480
Keywords in EnglishQuartz tuning fork, Quartz Enhanced Photoacoustic Spectroscopy, Gas Sensing
DOIDOI:10.1117/12.2209530
URL http://dx.doi.org/10.1117/12.2209530
projectResearch on measurement, circuit and signal theory and electronic circuits and systems. Project leader: Romaniuk Ryszard, , Phone: +48 22 234 7986, +48 22 234 5360, start date 15-06-2015, end date 31-12-2016, ISE/2015/DS, Completed
WEiTI Działalność statutowa
Languageen angielski
File
SPIE_97552L_S.pdf 638.98 KB
Score (nominal)15
ScoreMinisterial score = 15.0, 27-03-2017, BookChapterMatConf
Ministerial score (2013-2016) = 15.0, 27-03-2017, BookChapterMatConf
Citation count*1 (2018-07-18)
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