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Acta Optica Sinica, Volume. 40, Issue 4, 0429002(2020)

Influence of Non-uniformity of Light Attenuated by Solar Attenuation Screen on On-board Calibration

Wenxin Huang*, Liming Zhang**, Xiaolong Si, Hongyao Chen, Jun Hao, Shiwei Bao, Baoyun Yang, and Jixiang Wang
Author Affiliations
  • Key Laboratory of Optical Calibration and Characterization, Chinese Academy of Sciences, Hefei, Anhui 230031, China
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    Figures&Tables (8)
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    References (13)
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    Figures & Tables(8)
    Calibration principle based on solar diffuser with solar attenuation screen

    Fig. 1. Calibration principle based on solar diffuser with solar attenuation screen

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    Measurement results of SAC pass aperture

    Fig. 2. Measurement results of SAC pass aperture

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    Angular distribution of SAC transmittance

    Fig. 3. Angular distribution of SAC transmittance

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    Ray tracing schematic of energy uniformity on focal plane

    Fig. 4. Ray tracing schematic of energy uniformity on focal plane

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    Test schematic of change trend verification of SD radiance-angle

    Fig. 5. Test schematic of change trend verification of SD radiance-angle

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    Change trend of SD radiance-angle at 355 nm

    Fig. 6. Change trend of SD radiance-angle at 355 nm

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    • Table 1. Difference of SD radiance

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      Table 1. Difference of SD radiance

      Wavelength /nmRelative difference η1 /[%/(°)]Relative difference η2 /[%/(°)]
      θSC=15°θSC=17°θSC=19°θSC=21°ϕSC=-13°ϕSC=-17°ϕSC=-21°ϕSC=-25°ϕSC=-29°ϕSC=-33°
      3550.06760.08520.10760.10770.41570.27210.34510.33920.30180.3439
      3850.07570.08080.10580.11440.43730.34610.31400.38620.32130.3590
      4120.07910.08360.11010.11660.46350.41120.32400.44720.34510.3702
      4430.07370.08380.10570.11470.46000.44000.34140.46510.36900.3729
      4900.06680.08590.09150.10680.43920.41110.37580.44550.35020.3385
      5200.07260.09340.08830.10340.40560.37290.38820.39760.33150.2992
      5650.06570.09380.08140.08850.36260.29300.40060.34640.31640.2454
      6700.07770.09210.10100.08850.33990.28010.38690.33370.30180.2356
      7500.06560.07880.08430.07500.32700.25780.36790.36710.29370.2184
      8650.03760.04180.07120.05520.33640.26610.37840.38890.29600.2880

    • Table 2. Uncertainty analysis of SD spectral radiance of SCS

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      Table 2. Uncertainty analysis of SD spectral radiance of SCS

      SourceUncertainty /%
      SD BRDF measurement1.2(UV)0.8(VN)
      Transmittance distribution of SAC0.54
      SD radiance non-uniformity0.4
      SD cosine error of incidence0.35
      SD stability monitor0.54
      Degeneration of SD before launch0.5
      Solar spectral irradiance1
      Stray light and unknown factor1
      U2.13(UV)1.94(VN)
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    Wenxin Huang, Liming Zhang, Xiaolong Si, Hongyao Chen, Jun Hao, Shiwei Bao, Baoyun Yang, Jixiang Wang. Influence of Non-uniformity of Light Attenuated by Solar Attenuation Screen on On-board Calibration[J]. Acta Optica Sinica, 2020, 40(4): 0429002

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    Paper Information

    Category: Scattering

    Received: Sep. 20, 2019

    Accepted: Nov. 6, 2019

    Published Online: Feb. 11, 2020

    The Author Email: Huang Wenxin (huangwx@aiofm.ac.cn), Zhang Liming (lmzhang@aiofm.ac.cn)

    DOI:10.3788/AOS202040.0429002

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology