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Volume 26 Issue 2
Sep.  2013
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Citation:
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OPO-CARS thermometry and influence of slit function on precision

  • 1.

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

  • Received Date: 2000-10-19
    Accepted Date: 2001-05-15
  • 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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    Meier W,Plath I,Stricker W.Appl Phys,1991,B53(5/6):339～346.
    [2]

    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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    P-Luchtt R,Teets R E,Green R M.Combust Sci Tech,1987,55:41～61.
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    Snelling D R,Smallwood G J,Parameswaran T.Appl Opt,1987,26:99～109.
    [5] 申铉国,张铁强,殷景志.中国激光,1998,25(4):381～384.
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    Diebel E,Dreier T,Lange B et al.Appl Phys,1989,B50:39.
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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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OPO-CARS thermometry and influence of slit function on precision

  • 1. Department of Applied Physcis, Nanling College, Ji'lin University, Changchun, 130025
  • Received Date: 2000-10-19
  • Accepted Date: 2001-05-15
  • Available Online: 2002-03-25

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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