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
AbstractA 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.
|Journal series||Optics Express, ISSN 1094-4087 |
|Publication size in sheets||0.5|
|Keywords in Polish||rezonatory kwarcowe, spektroskopia fotoakustyczna, QEPAS|
|Keywords in English||quartz tuning forks, photoacoustic spectroscopy, QEPAS|
|project||Research 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
|Score|| = 40.0, 27-03-2017, ArticleFromJournal|
= 45.0, 27-03-2017, ArticleFromJournal
|Publication indicators||: 2016 = 3.307 (2) - 2016=3.436 (5)|
|Citation count*||19 (2018-02-25)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.