Ethylene Trace Detection by Quartz Enhanced Photoacoustic Spectroscopy

K. Liu; T. Wu; X. Gao; W. Zhang; E. Fertein; W. Chen

doi:10.1364/CLEO.2009.JTuD84

Conference on Lasers and Electro-Optics/International Quantum Electronics Conference
OSA Technical Digest (CD) (Optica Publishing Group, 2009),
paper JTuD84
•https://doi.org/10.1364/CLEO.2009.JTuD84

Ethylene Trace Detection by Quartz Enhanced Photoacoustic Spectroscopy

K. Liu, T. Wu, X. Gao, W. Zhang, E. Fertein, and W. Chen

Conference on Lasers and Electro-Optics 2009

Baltimore, Maryland United States
31 May–5 June 2009
ISBN: 978-1-55752-869-8

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Joint CLEO Poster Session I (JTuD)

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K. Liu, T. Wu, X. Gao, W. Zhang, E. Fertein, and W. Chen, "Ethylene Trace Detection by Quartz Enhanced Photoacoustic Spectroscopy," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference, OSA Technical Digest (CD) (Optica Publishing Group, 2009), paper JTuD84.

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Abstract

Ethylene (C₂H₄) absorption line intensity at 6172.95 cm⁻¹ was determined for trace gas detection. C₂H₄ trace concentration measurements were performed using quartz enhanced photoacoustic spectroscopy (QEPAS) with a sensitivity of 1.3 ppmv (1σ) for τ=1s time constant. The effect of modulation frequency accuracy on QEPAS signal was investigated.

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