Carbon Monoxide Gas Sensor Based on Cavity Enhanced Absorption Spectroscopy and Harmonic Detection

被引：0
作者：
Zhang, Jingchao [1 ]
Cao, Suxia [1 ]
Guan, Lijun [1 ]
机构：
[1] Yanshan Univ, Coll Sci, Qinhuangdao 066004, Hebei, Peoples R China
来源：
2009 SYMPOSIUM ON PHOTONICS AND OPTOELECTRONICS (SOPO 2009) | 2009年
关键词：
CEAS; Harmonic detection; Carbon monoxide; gas sensor; DIODE-LASER SPECTROMETER; WAVELENGTH MODULATION;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A fiber carbon monoxide gas sensor was reported in this paper. Due to CO has a much weaker absorption in near infrared region, the harmonic detection technique is combined with cavity enhanced absorption spectroscopy (CEAS). The basic principle of harmonic detection technique and cavity enhanced absorption spectroscopy are expatiated at first. We designed the experiment scheme and analyzed the key problem in the experiment. The second harmonic signals were extracted at different CO concentration and we fit the amplitude of the second harmonic and corresponding CO concentration. The experiment results indicated that the amplitude of second harmonic and CO concentration have a good linearity relationship. A sensitivity of about 10ppm has been achieved with this measurement.
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页码：65 / 68
页数：4
相关论文
共 9 条
  • [1] Near-infrared tunable diode laser spectrometer for the remote sensing of vehicle emissions
    Barrass, S
    Gérard, Y
    Holdsworth, RJ
    Martin, PA
    [J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2004, 60 (14) : 3353 - 3360
  • [2] Fibre optic techniques for remote spectroscopic methane detection - from concept to system realisation
    Culshaw, B
    Stewart, G
    Dong, F
    Tandy, C
    Moodie, D
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 1998, 51 (1-3) : 25 - 37
  • [3] A compact NIR fiber-optic diode laser spectrometer for CO andCO2:: analysis of observed 2f wavelength modulation spectroscopy line shapes
    Engelbrecht, R
    [J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2004, 60 (14) : 3291 - 3298
  • [4] CAVITY RING-DOWN OPTICAL SPECTROMETER FOR ABSORPTION-MEASUREMENTS USING PULSED LASER SOURCES
    OKEEFE, A
    DEACON, DAG
    [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1988, 59 (12) : 2544 - 2551
  • [5] The detection of carbon monoxide by cavity enhanced absorption spectroscopy with a DFB diode laser
    Pei, SX
    Cui, FP
    Gao, XM
    Zhao, WX
    Yang, Y
    Huang, T
    Huang, W
    Zhang, WJ
    [J]. VIBRATIONAL SPECTROSCOPY, 2006, 40 (02) : 192 - 196
  • [6] Interferometric signals in fiber optic methane sensors with wavelength modulation of the DFB laser source
    Stewart, G
    Mencaglia, A
    Philp, W
    Jin, W
    [J]. JOURNAL OF LIGHTWAVE TECHNOLOGY, 1998, 16 (01) : 43 - 53
  • [7] H2S AND CO2 GAS-SENSING USING DFB LASER-DIODES EMITTING AT 1.57 MU-M
    WELDON, V
    OGORMAN, J
    PHELAN, P
    HEGARTY, J
    TANBUNEK, T
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 1995, 29 (1-3) : 101 - 107
  • [8] Optical fibre instrumentation for environmental monitoring applications
    Whitenett, G
    Stewart, G
    Atherton, K
    Culshaw, B
    Johnstone, W
    [J]. JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS, 2003, 5 (05): : S140 - S145
  • [9] Zhang Min, 2005, Chinese Journal of Lasers, V32, P982
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