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Chinese Journal of Lasers, Volume. 46, Issue 10, 1010002(2019)

Temperature-Correction Method for Directional Polarimetric Camera

Bihai Tu1,2,3、*, Jin Hong1,3, Pingping Yao1,3, Yi Wang1,3, Yinlin Yuan1,3, and Jianwen Weng1,2,3
Author Affiliations
  • 1Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, Anhui 230031, China
  • 2University of Science and Technology of China, Hefei, Anhui 230026, China
  • 3Key Laboratory of Optical Calibration and Characterization, Chinese Academy of Sciences,Hefei, Anhui 230031, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (21)
    Equations (0)
    References (21)
    Cited By (4)
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    Paper Information
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    Figures & Tables(21)
    Diagram of instrument system composition

    Fig. 1. Diagram of instrument system composition

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    Schematic of multi-angle imaging

    Fig. 2. Schematic of multi-angle imaging

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    Diagram of optical system

    Fig. 3. Diagram of optical system

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    Focal length at 865 nm band versus temperature

    Fig. 4. Focal length at 865 nm band versus temperature

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    Spectral response curve of detector

    Fig. 5. Spectral response curve of detector

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    Diagram of DPC imaging system

    Fig. 6. Diagram of DPC imaging system

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    Temperature measurement range of MF501

    Fig. 7. Temperature measurement range of MF501

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    Variation of temperature measurement accuracy

    Fig. 8. Variation of temperature measurement accuracy

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    Diagram of radiation response changing with temperature

    Fig. 9. Diagram of radiation response changing with temperature

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    Dark current curve

    Fig. 10. Dark current curve

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    Frame transfer correction. (a) Raw image; (b) corrected image

    Fig. 11. Frame transfer correction. (a) Raw image; (b) corrected image

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    Spectrum of light source in experiment

    Fig. 12. Spectrum of light source in experiment

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    Stability of light source in experiment

    Fig. 13. Stability of light source in experiment

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    Radiation response curves

    Fig. 14. Radiation response curves

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    Flow chart of data processing

    Fig. 15. Flow chart of data processing

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    Temperature change curve of measuring point

    Fig. 16. Temperature change curve of measuring point

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    • Table 1. Specifications of instrument

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      Table 1. Specifications of instrument

      ContentParameter
      Orbit typeSun synchronous orbit
      Orbit altitude /km708
      Field of view /(°)118.74
      Spatial resolution /km3.29 (sub-satellite point)
      Number of multi-angle9 (along orbit)
      Spectral band /nm443,565,763,765,910490(P),670(P),865(P)
      Angle of polarizer /(°)0,60,120
      Band selection modeFilter wheel
      Imaging methodStaring
      Detector array size512×512
      Pixel size /(μm×μm )22.5×22.5
      Focal length of system /mm4.833
      Relative aperture1∶4

    • Table 2. Experimental equipments

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      Table 2. Experimental equipments

      Equipment nameParameter
      Standard detectorWavelength (350-1100 nm)
      Spectral radiometerWavelength (350-2500 nm)
      Integrating sphere sourceWavelength (350-2500 nm)
      Two-dimensionalturntableHorizontal scroll (>250 mm)Vertical scroll (>100 mm)
      Vacuum thermalcontrol systemTemperature range (-175-100 ℃)Vacuum degree (10-3-101.325 Pa)

    • Table 3. Response value versus temperature

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      Table 3. Response value versus temperature

      Temperature /℃Response values of different wavelengths
      763 nm765 nm865 nm910 nm
      -0.1174387327242856247
      2.6404387327243066298
      5.6704389327543296352
      8.7034389327743566412
      12.0894390327743816472
      15.2554391327944046526
      17.8804391327944266576
      20.9684392328144506631
      24.2434395328444726682

    • Table 4. Variation rate of temperature effect

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      Table 4. Variation rate of temperature effect

      Band /nmf1f2f3f4Variety /(10-3 ℃-1)(11-15 ℃)Total range /%
      910-0.00244200.0461118.210062492.8011.121
      865-0.00212130.029687.695042861.6850.674
      7650.0011660-0.040580.806932710.1050.042
      7630.0010250-0.031340.487943870.0420.0168

    • Table 5. Temperature monitoring table of on-orbit detector module ℃

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      Table 5. Temperature monitoring table of on-orbit detector module ℃

      Coordinated universal timeMaximumMinimumAverage
      20180510T10:40—11:2612.71412.40112.704
      20180528T18:26—20:4513.02812.71412.715
      20180604T10:14—11:0012.71412.40112.704
      20180717T16:59—17:4512.40112.40112.401
      20180819T13:05—13:5012.71412.40112.685
      20180820T10:29—11:1512.71412.40112.503
      20180911T01:21—02:0712.71412.40112.687
      20180911T04:39—05:1212.71412.40112.649
      20180911T06:18—07:0312.71412.40112.624
      20181007T08:13—08:5912.71412.40112.697
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    Bihai Tu, Jin Hong, Pingping Yao, Yi Wang, Yinlin Yuan, Jianwen Weng. Temperature-Correction Method for Directional Polarimetric Camera[J]. Chinese Journal of Lasers, 2019, 46(10): 1010002

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    Paper Information

    Category: remote sensing and sensor

    Received: Feb. 1, 2019

    Accepted: Jun. 10, 2019

    Published Online: Oct. 25, 2019

    The Author Email: Tu Bihai (tubihai@aiofm.ac.cn)

    DOI:10.3788/CJL201946.1010002

    Topics

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