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Volume 30 Issue 2
Sep.  2013
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Investigation on dual-beam Doppler speedometer based on CO2 lasers

  • Corresponding author: CHEN Jian-guo, optics_lab@163.com
  • Received Date: 2005-09-12
    Accepted Date: 2005-09-29
  • An experiment set-up is constructed to measure the transverse velocity of a moving target by using dual beam mode of CW CO2 laser in the laboratory.The experiment is conducted in the laboratory using dual-beam mode and clear Doppler frequency signals are recorded,and signal data filtering is performed leading to an enhanced SNR.The calculated velocity of the moving target is compared with the actual velocity.The result shows that the measured velocity corresponds with the actual velocity very well.
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  • [1]

    DURST F,MELLING A,WHITELAW J H.Principles and practice of laser-Doppler anemometry[M].Beijing:Science Press,1992.6~7(in Chinese).
    [2]

    LU H Sh,LIU B.Latest developmentoflaser Doppler technique in vibration measurement[J].Laser Technology,2002,29 (1):176~179(in Chinese).
    [3]

    AUGERE B,CARIOU J.All-fiber 1.5 μm CW coherent laser anemometer for in-flight measurements[J].SPIE,2003,5086:121~128.
    [4]

    WU L M,YE L H,HE A Zh et al.Turbulent flow velocity field measurement of recoil mechanism by LDV[J].Infrared and Laser Engineering,1998,27 (6):29~30 (in Chinese).
    [5]

    ZOU H,ZHAO Y.Applications of laser Doppler technique in solid surface measurement[J].Optical Technique,2000,26 (2):101~106(in Chinese).
    [6]

    CAI X P,ZHAO Y,DAI Y J et al.CO2 coherent laser Doppler velocimeter[J].Infrared Millim Waves,1996,15(6):465~468(in Chinese).
    [7]

    LI Zh Zh,CAI H,HONG X G et al.Twin-beam laser Doppler velocity system[J].Physics Experimentation,2005,25 (3):44~47 (in Chinese).
    [8]

    SHEN X.Laser Doppler velocimetry and its application[M].Beijing:Tsinghua University Press,2004.23~32(in Chinese).
    [9]

    CHEN Y,WANG Y L,ZHOU D F et al.Faint signal processing of lidar based on wavelet multi-resolution analysis[J].Laser Technology,2005,29(3):278~280(in Chinese).
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Investigation on dual-beam Doppler speedometer based on CO2 lasers

    Corresponding author: CHEN Jian-guo, optics_lab@163.com
  • 1. Department of Optoelectronics, Sichuan University, Chengdu 610064, China;
  • 2. China Science Academy of Weapons, Beijing 100089, China;
  • 3. Southwest Institute of Technical Physics, Chengdu 610041, China

Abstract: An experiment set-up is constructed to measure the transverse velocity of a moving target by using dual beam mode of CW CO2 laser in the laboratory.The experiment is conducted in the laboratory using dual-beam mode and clear Doppler frequency signals are recorded,and signal data filtering is performed leading to an enhanced SNR.The calculated velocity of the moving target is compared with the actual velocity.The result shows that the measured velocity corresponds with the actual velocity very well.

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