• Laser & Optoelectronics Progress
  • Vol. 61, Issue 13, 1301001 (2024)
Yin Li1, Shoufeng Tong2,**, Lei Zhang1,*, Heng Zhang1, and Yuxi Cao1
Author Affiliations
  • 1School of Optoelectronic Engineering, Changchun University of Science and Technology, Changchun 130022, Jilin , China
  • 2National and Local Engineering Research Center of Space Optoelectronic Technology, Changchun University of Science and Technology, Changchun 130022, Jilin , China
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    DOI: 10.3788/LOP231257 Cite this Article Set citation alerts
    Yin Li, Shoufeng Tong, Lei Zhang, Heng Zhang, Yuxi Cao. Measurement of Changchun Area Using a Broadband Sky Background Light Radiometer[J]. Laser & Optoelectronics Progress, 2024, 61(13): 1301001 Copy Citation Text show less

    Abstract

    This study aims to enhance the understanding of broadband background light radiation and fulfill the requirements for the real-time measurement of sky background radiation for scientific research and experiments. A broadband sky background light radiometer was developed that is capable of full sky scanning and fixed-point observation, thereby broadening the measurable wavelength range. The radiometer successfully measured integrated radiance across the 200?2500 nm band. This paper presents the equipment's overall structural schematic and details the development plans for each subsystem component along with comprehensive technical specifications, calibration principles, and experimental procedures. An analysis of the equipment's uncertainty confirmed its reliability by meeting the predefined uncertainty requirements. The radiometer was employed for field measurements in the Changchun area, and the data underwent preliminary analysis. The findings were consistent with the expected radiation variation laws, offering a novel and efficient method for scientific research and practical applications.
    fd2tan 0.5°34.38 mm
    α=arcsinNA12.71°
    D=2ftanα=22.55 mm
    Vx1=KP(A-B-C+D)
    Vy1=KP(A+B-C-D)
    I=0.25(T1-T2)(S-N)/Kλb/π
    Eλs=Eλs0s02s2
    Lλs=ρλEλsπ=ρλEλs0s02s2π
    Kλ=1Ni=1NVNλi-VNλ0Lλs
    Lλj=1Ni=1NVNλji-VNλ0Kλ
    Kλb=1Ni=1NVNλbi-VNλb0Lλj
    σ1=σ112+σ122+σ1323.14%
    σ2=σ212+σ222+σ232+σ2422.12%
    σ=σ12+σ22+σ32+σ425.74%
    Yin Li, Shoufeng Tong, Lei Zhang, Heng Zhang, Yuxi Cao. Measurement of Changchun Area Using a Broadband Sky Background Light Radiometer[J]. Laser & Optoelectronics Progress, 2024, 61(13): 1301001
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