Acoustic Coupling between Resonator Tubes in Quartz-Enhanced Photoacoustic Spectrophones Employing a Large Prong Spacing Tuning Fork
A theoretical model describing the acoustic coupling between two resonator tubes in spectrophones exploiting custom-made quartz tuning forks (QTFs) is proposed. The model is based on an open-end correction to predict the optimal tube length. A calculation of the sound field distribution from one tub...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-09-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/19/19/4109 |
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| author | Stefano Dello Russo Marilena Giglio Angelo Sampaolo Pietro Patimisco Giansergio Menduni Hongpeng Wu Lei Dong Vittorio M. N. Passaro Vincenzo Spagnolo |
| author_facet | Stefano Dello Russo Marilena Giglio Angelo Sampaolo Pietro Patimisco Giansergio Menduni Hongpeng Wu Lei Dong Vittorio M. N. Passaro Vincenzo Spagnolo |
| author_sort | Stefano Dello Russo |
| collection | DOAJ |
| description | A theoretical model describing the acoustic coupling between two resonator tubes in spectrophones exploiting custom-made quartz tuning forks (QTFs) is proposed. The model is based on an open-end correction to predict the optimal tube length. A calculation of the sound field distribution from one tube exit allowed for the estimation of the optimal radius as a function of the QTF prong spacing and the sound wavelength. The theoretical predictions have been confirmed using experimental studies employing a custom QTF with a fundamental flexural mode resonance frequency of 15.8 kHz and a quality factor of 15,000 at atmospheric pressure. The spacing between the two prongs was 1.5 mm. Spectrophones mounting this QTF were implemented for the quartz-enhanced photoacoustic detection of water vapor in air in the mid-infrared spectral range. |
| first_indexed | 2024-04-13T07:45:58Z |
| format | Article |
| id | doaj.art-9405aeb601ca414b86cbcf6a98173df5 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-13T07:45:58Z |
| publishDate | 2019-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-9405aeb601ca414b86cbcf6a98173df52022-12-22T02:55:42ZengMDPI AGSensors1424-82202019-09-011919410910.3390/s19194109s19194109Acoustic Coupling between Resonator Tubes in Quartz-Enhanced Photoacoustic Spectrophones Employing a Large Prong Spacing Tuning ForkStefano Dello Russo0Marilena Giglio1Angelo Sampaolo2Pietro Patimisco3Giansergio Menduni4Hongpeng Wu5Lei Dong6Vittorio M. N. Passaro7Vincenzo Spagnolo8PolySense Lab, Physics Department, Politecnico and University of Bari, CNR-IFN, I-70100 Bari, ItalyPolySense Lab, Physics Department, Politecnico and University of Bari, CNR-IFN, I-70100 Bari, ItalyPolySense Lab, Physics Department, Politecnico and University of Bari, CNR-IFN, I-70100 Bari, ItalyPolySense Lab, Physics Department, Politecnico and University of Bari, CNR-IFN, I-70100 Bari, ItalyPolySense Lab, Physics Department, Politecnico and University of Bari, CNR-IFN, I-70100 Bari, ItalyState Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, ChinaState Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, ChinaPhotonics Research Group, Dipartimento di Ingegneria Elettrica e dell’informazione, Politecnico of Bari, I-70126 Bari, ItalyPolySense Lab, Physics Department, Politecnico and University of Bari, CNR-IFN, I-70100 Bari, ItalyA theoretical model describing the acoustic coupling between two resonator tubes in spectrophones exploiting custom-made quartz tuning forks (QTFs) is proposed. The model is based on an open-end correction to predict the optimal tube length. A calculation of the sound field distribution from one tube exit allowed for the estimation of the optimal radius as a function of the QTF prong spacing and the sound wavelength. The theoretical predictions have been confirmed using experimental studies employing a custom QTF with a fundamental flexural mode resonance frequency of 15.8 kHz and a quality factor of 15,000 at atmospheric pressure. The spacing between the two prongs was 1.5 mm. Spectrophones mounting this QTF were implemented for the quartz-enhanced photoacoustic detection of water vapor in air in the mid-infrared spectral range.https://www.mdpi.com/1424-8220/19/19/4109quartz tuning forkresonator tubesspectrophonephotoacoustic spectroscopygas sensing |
| spellingShingle | Stefano Dello Russo Marilena Giglio Angelo Sampaolo Pietro Patimisco Giansergio Menduni Hongpeng Wu Lei Dong Vittorio M. N. Passaro Vincenzo Spagnolo Acoustic Coupling between Resonator Tubes in Quartz-Enhanced Photoacoustic Spectrophones Employing a Large Prong Spacing Tuning Fork Sensors quartz tuning fork resonator tubes spectrophone photoacoustic spectroscopy gas sensing |
| title | Acoustic Coupling between Resonator Tubes in Quartz-Enhanced Photoacoustic Spectrophones Employing a Large Prong Spacing Tuning Fork |
| title_full | Acoustic Coupling between Resonator Tubes in Quartz-Enhanced Photoacoustic Spectrophones Employing a Large Prong Spacing Tuning Fork |
| title_fullStr | Acoustic Coupling between Resonator Tubes in Quartz-Enhanced Photoacoustic Spectrophones Employing a Large Prong Spacing Tuning Fork |
| title_full_unstemmed | Acoustic Coupling between Resonator Tubes in Quartz-Enhanced Photoacoustic Spectrophones Employing a Large Prong Spacing Tuning Fork |
| title_short | Acoustic Coupling between Resonator Tubes in Quartz-Enhanced Photoacoustic Spectrophones Employing a Large Prong Spacing Tuning Fork |
| title_sort | acoustic coupling between resonator tubes in quartz enhanced photoacoustic spectrophones employing a large prong spacing tuning fork |
| topic | quartz tuning fork resonator tubes spectrophone photoacoustic spectroscopy gas sensing |
| url | https://www.mdpi.com/1424-8220/19/19/4109 |
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