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Zheng Yongmei, Shen Xuanguo, Gu Feng. OPO-CARS thermometry and influence of slit function on precision[J]. LASER TECHNOLOGY, 2002, 26(2): 150-152.
Citation: Zheng Yongmei, Shen Xuanguo, Gu Feng. OPO-CARS thermometry and influence of slit function on precision[J]. LASER TECHNOLOGY, 2002, 26(2): 150-152.
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OPO-CARS thermometry and influence of slit function on precision

  • Department of Applied Physcis, Nanling College, Ji'lin University, Changchun, 130025

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  • Received Date: October 18, 2000
  • Revised Date: May 14, 2001
  • Published Date: March 24, 2002
    Graphical Abstract
    • Abstract
  • A new broadband coherent anti Stoke Raman spectral(CARS) thermoscope,consisting of a frequency double Nd:YAG laser and an optical parametric oscillator(OPO) instead of the dye laser,is introduced.In order to increase the precision of CARS temperature measurement,the slit function of the detection system is studied and determined.The precision of the system is evaluated based on the difference between the best fitting temperature of CARS spectrum and temperature of thermocouple reading.The uncertainty of the temperature measurement is less than 2% in the range of 300K～1200K.
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    • References (6)
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    Brandley D,Lawes M,Scott M J et al.Measurement of Temperature PDF in Turbulent Flames by CARS Technique.24th Symposium on Combustion,in Brisbane,Australia,1992.
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