26 January 2018 Compact and low-noise quartz-enhanced photoacoustic sensor for sub-ppm ethylene detection in atmosphere
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Abstract
We report on the development of a gas sensor system based on quartz-enhanced photoacoustic spectroscopy (QEPAS) for the detection of trace levels of ethylene using a quantum cascade laser operating at ~ 10.3 μm. To realize a compact sensor architecture, a dedicated acoustic detection module was designed and implemented. The module includes a QEPAS spectrophone, composed of a quartz tuning fork, a micro-resonator tube and a low-noise pre-amplifier chip for the signal readout. The volume of the ADM is ~30 cm3. A minimum detection limit of 30 part-per-billion in concentration was obtained with a data acquisition time of 10 s.
Conference Presentation
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P. Patimisco, P. Patimisco, A. Sampaolo, A. Sampaolo, M. Giglio, M. Giglio, F. Sgobba, F. Sgobba, H. Rossmadl, H. Rossmadl, V. Mackowiak, V. Mackowiak, B. Gross, B. Gross, A. Cable, A. Cable, F. K. Tittel, F. K. Tittel, V. Spagnolo, V. Spagnolo, } "Compact and low-noise quartz-enhanced photoacoustic sensor for sub-ppm ethylene detection in atmosphere", Proc. SPIE 10540, Quantum Sensing and Nano Electronics and Photonics XV, 105401Q (26 January 2018); doi: 10.1117/12.2288368; https://doi.org/10.1117/12.2288368
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