DocumentCode :
500242
Title :
Ethylene trace detection by quartz enhanced photoacoustic spectroscopy
Author :
Liu, K. ; Wu, T. ; Gao, X. ; Zhang, W. ; Fertein, E. ; Chen, W.
Author_Institution :
Anhui Institue of Opt. & Fine Mech., Chinese Acad. of Sci., Hefei, China
fYear :
2009
fDate :
2-4 June 2009
Firstpage :
1
Lastpage :
2
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 (1sigma) for tau=1s time constant. The effect of modulation frequency accuracy on QEPAS signal was investigated.
Keywords :
chemical analysis; chemical variables measurement; photoacoustic spectroscopy; QEPAS signal; ethylene absorption line intensity; ethylene trace detection; modulation frequency accuracy; quartz enhanced photoacoustic spectroscopy; trace concentration measurements; trace gas detection; Absorption; Frequency modulation; Infrared sensors; Infrared spectra; Laser tuning; Optical sensors; Performance evaluation; Spectroscopy; Time measurement; Vibrations; (110.5125) Photoacoustics; (280.3420) Laser sensors; (300.6340) Spectroscopy, infrared;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
Type :
conf
Filename :
5225624
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=500242
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