QEPAS methane sensor performance for humidified gases

被引：86
作者：
Kosterev, A. A. [1 ]
Bakhirkin, Y. A. [1 ]
Tittel, F. K. [1 ]
McWhorter, S. [2 ]
Ashcraft, B. [2 ]
机构：
[1] Rice Univ, Dept Elect & Comp Engn, Houston, TX 77005 USA
[2] Savannah River Natl Lab, Hydrogen Technol Res Lab, Aiken, SC 29808 USA
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2008年 / 92卷 / 01期
关键词：
D O I：
10.1007/s00340-008-3056-9
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A trace gas sensor based on quartz enhanced photoacoustic spectroscopy (QEPAS) was evaluated using humidified nitrogen samples and ambient air. Relaxation processes following vibrational excitation of 2 nu(3) state of CH4 were investigated. Sensor performance at different gas pressures could be predicted based on a developed kinetic model. The experimentally determined normalized detection sensitivity for CH4 in humid gas is 1.0x10(8) cm(-1) W/Hz(1/2).
引用
收藏
页码：103 / 109
页数：7
相关论文
共 15 条
  • [1] COTTRELL TL, 1961, MOL ENERGY TRANSFER
  • [2] Gorelik G., 1946, Dokl. Akad. Nauk SSSR, V54, P779
  • [3] Kosterev AA, 2006, APPL PHYS B-LASERS O, V85, P295, DOI [10.1007/s00340-006-2355-2, 10.1007/S00340-006-2355-2]
  • [4] Applications of quartz tuning forks in spectroscopic gas sensing
    Kosterev, AA
    Tittel, FK
    Serebryakov, DV
    Malinovsky, AL
    Morozov, IV
    [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 2005, 76 (04)
  • [5] Photoacoustic phase shift as a chemically selective spectroscopic parameter
    Kosterev, AA
    Bakhirkin, YA
    Tittel, FK
    Blaser, S
    Bonetti, Y
    Hvozdara, L
    [J]. APPLIED PHYSICS B-LASERS AND OPTICS, 2004, 78 (06): : 673 - 676
  • [6] Quartz-enhanced photoacoustic spectroscopy
    Kosterev, AA
    Bakhirkin, YA
    Curl, RF
    Tittel, FK
    [J]. OPTICS LETTERS, 2002, 27 (21) : 1902 - 1904
  • [7] Carbon dioxide and ammonia detection using 2 μm diode laser based quartz-enhanced photoacoustic spectroscopy
    Lewicki, R.
    Wysocki, G.
    Kosterev, A. A.
    Tittel, F. K.
    [J]. APPLIED PHYSICS B-LASERS AND OPTICS, 2007, 87 (01): : 157 - 162
  • [8] QEPAS based detection of broadband absorbing molecules using a widely tunable, cw quantum cascade laser at 8.4 μm
    Lewicki, Rafal
    Wysocki, Gerard
    Kosterev, Anatoliy A.
    Tittel, Frank. K.
    [J]. OPTICS EXPRESS, 2007, 15 (12) : 7357 - 7366
  • [9] Optical-feedback cavity-enhanced absorption: a compact spectrometer for real-time measurement of atmospheric methane
    Romanini, D.
    Chenevier, M.
    Kassi, S.
    Schmidt, M.
    Valant, C.
    Ramonet, M.
    Lopez, J.
    Jost, H. -J.
    [J]. APPLIED PHYSICS B-LASERS AND OPTICS, 2006, 83 (04): : 659 - 667
  • [10] Near-infrared laser photoacoustic detection of methane:: the impact of molecular relaxation
    Schilt, S
    Besson, JP
    Thévenaz, L
    [J]. APPLIED PHYSICS B-LASERS AND OPTICS, 2006, 82 (02): : 319 - 328
12