Analysis of overtone flexural modes operation in quartz-enhanced photoacoustic spectroscopy

Frank K. Tittel , Angelo Sampaolo , Pietro Patimisco , Lei Dong , Antonina Geras , Tomasz Starecki , Vincenzo Spagnolo


A detailed investigation of a set of custom quartz tuning forks (QTFs), operating in the fundamental and first overtone flexural modes is reported. Support losses are the dominant energy dissipation processes when the QTFs vibrate at the first overtone mode. These losses can be decreased by increasing the ratio between the prong length and its thickness. The QTFs were implemented in a quartz enhanced photoacoustic spectroscopy (QEPAS) based sensor operating in the near-IR spectral range and water vapor was selected as the gas target. QTF flexural modes having the highest quality factor exhibit the largest QEPAS signal, demonstrating that, by optimizing the QTF prongs sizes, overtone modes can provide a higher QEPAS sensor performance with respect to using the fundamental mode.
Author Frank K. Tittel
Frank K. Tittel,,
, Angelo Sampaolo
Angelo Sampaolo,,
, Pietro Patimisco
Pietro Patimisco,,
, Lei Dong
Lei Dong,,
, Antonina Geras ISE
Antonina Geras,,
- The Institute of Electronic Systems
, Tomasz Starecki ISE
Tomasz Starecki,,
- The Institute of Electronic Systems
, Vincenzo Spagnolo
Vincenzo Spagnolo,,
Journal seriesOptics Express, ISSN 1094-4087 []
Issue year2016
Publication size in sheets0.5
Keywords in Polishrezonatory kwarcowe, spektroskopia fotoakustyczna, QEPAS
Keywords in Englishquartz tuning forks, photoacoustic spectroscopy, QEPAS
projectResearch on measurement, circuit and signal theory and electronic circuits and systems. Project leader: Starecki Tomasz, , Phone: +48 22 825 37 09; 22 234 7744; +48 22 234 3657, start date 12-05-2016, end date 31-12-2017, ISE/2016/DS, Completed
WEiTI Działalność statutowa
Languageen angielski
Score (nominal)45
ScoreMinisterial score = 40.0, 27-03-2017, ArticleFromJournal
Ministerial score (2013-2016) = 45.0, 27-03-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 3.307 (2) - 2016=3.436 (5)
Citation count*24 (2018-07-18)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.