A novel double-tuning fork acoustic detection module for photoacoustic wide range sensing

Arianna Elefante; Christian Brehm; Hubert Rossmadl; Verena Mackoviak; Giansergio Menduni; Michele Di Gioia; Marilena Giglio; Pietro Patimisco; Angelo Sampaolo; Vincenzo Spagnolo

doi:10.1117/12.2608905

5 March 2022 A novel double-tuning fork acoustic detection module for photoacoustic wide range sensing

Arianna Elefante, Christian Brehm, Hubert Rossmadl, Verena Mackoviak, Giansergio Menduni, Michele Di Gioia, Marilena Giglio, Pietro Patimisco, Angelo Sampaolo, Vincenzo Spagnolo

Author Affiliations +

Proceedings Volume 12008, Photonic Instrumentation Engineering IX; 120080N (2022) https://doi.org/10.1117/12.2608905
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

The extension of the detection range is a crucial task for improving the effectiveness of gas sensors. In this work we propose a novel approach in quartz-enhanced photoacoustic detection in which the detection module is composed of a bare 15 kHz custom tuning fork (QTF), aligned with a 12 kHz QTF and mounted inside a vacuum-tight cell. This configuration allows the same molecule to be detected by the bare QTF at high concentration and by the 12 kHz QTF down to part-per-billion scale. The signal from the bare QTF is also useful to gather information on the gas matrix variation.

Conference Presentation

Citation Download Citation

Arianna Elefante, Christian Brehm, Hubert Rossmadl, Verena Mackoviak, Giansergio Menduni, Michele Di Gioia, Marilena Giglio, Pietro Patimisco, Angelo Sampaolo, and Vincenzo Spagnolo "A novel double-tuning fork acoustic detection module for photoacoustic wide range sensing", Proc. SPIE 12008, Photonic Instrumentation Engineering IX, 120080N (5 March 2022); https://doi.org/10.1117/12.2608905

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