Infrared and Laser Engineering, Volume. 50, Issue S2, 20210215(2021)

Surface response correction method of light intensity detector in high energy laser measurement

Fang Xue1...2, Yongquan Chen1, Yaxuan Duan1, Hui Lin1 and Zhengshang Da1 |Show fewer author(s)
Author Affiliations
  • 1Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
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    Figures & Tables(11)
    The diagram of the correction device for the surface response non-uniformity of the light intensity detector
    Schematic diagram of signal generator working sequence
    Structure of integrating sphere
    Schematic diagram of illumination uniformity at the calibration position of the detector
    Simulation results of the uniformity of the corrected light source
    Distribution before and after correction of ten percent of approximate CCD full gray: (a) Row direction; (b) Column direction
    Distribution before and after correction of fifty percent approximate of CCD full gray: (a) Row direction; (b) Column direction
    Distribution before and after correction of ninety percent of approximate CCD full gray: (a) Row direction; (b) Column direction
    Comparison of correction results between the two-point method and the proposed method: (a) Row direction; (b) Column direction
    • Table 1. Parameters of integral ball

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      Table 1. Parameters of integral ball

      Parameter of first integrating sphereInner diameter of integrating sphere/mmSize of light entrance/mmDiameter of one-time baffle/mmSize of light exit/mm
      Φ150 Φ12 Φ15 Φ30
      Parameter of second integrating sphereInner diameter of integrating sphere/mmSize of light entrance/mmSize of light exit/mm
      Φ150 Φ30 Φ40
    • Table 2. Comparison of modulation degree and contrast before and after correction

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      Table 2. Comparison of modulation degree and contrast before and after correction

      Source intensityCCD average value UncorrectionCorrection
      Modulation degreeContrastModulation degreeContrast
      14291.080.0171.050.011
      25101.070.0161.050.009
      35841.070.0151.050.009
      46671.070.0151.040.008
      57461.110.0151.040.008
      68301.170.0151.040.007
      79111.210.0151.030.007
      89951.240.0141.030.007
      910821.270.0151.030.007
      1011651.290.0141.030.006
      1112581.280.0151.030.006
      1213441.320.0151.040.006
      1314281.340.0141.050.006
      1415181.340.0151.050.006
      1516071.360.0141.060.005
      1616951.370.0141.060.005
      1718701.390.0141.070.005
      1819601.390.0141.070.005
      1920521.410.0141.080.005
      2021451.410.0141.080.005
      2122321.400.01431.070.005
      2223221.410.0141.080.005
      2324151.400.0141.070.005
      2425111.420.0141.080.004
      2526021.420.0141.080.004
      2626961.420.0141.080.004
      2727851.420.0141.080.004
      2828801.420.0141.080.004
      2929771.380.0151.050.004
      3030621.340.0141.020.004
      3131601.300.0141.020.004
      3232541.260.0141.020.004
      3333511.220.0151.020.004
      3434471.190.0151.020.004
      3535341.110.0141.020.004
      3636351.110.0141.020.004
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    Fang Xue, Yongquan Chen, Yaxuan Duan, Hui Lin, Zhengshang Da. Surface response correction method of light intensity detector in high energy laser measurement[J]. Infrared and Laser Engineering, 2021, 50(S2): 20210215

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    Paper Information

    Category: Photoelectric measurement

    Received: Apr. 2, 2021

    Accepted: --

    Published Online: Dec. 3, 2021

    The Author Email:

    DOI:10.3788/IRLA20210215

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