Spectral Calibration of Wide Band Solar Irradiance Spectrometer

Xiong-hao, 黄雄豪 Huang; Xin, 李新 Li; Enchao, 刘恩超 Liu; Xiaobing, 郑小兵 Zheng; Wenchao, 翟文超 Zhai

doi:10.3788/gzxb20174606.0601003

Cited by 2 publications

(2 citation statements)

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“…The development of solar simulation light source becomes an important part of Chinese space science simulating space environment experiment. [1] In the field of optical radiation calibration, the ground calibration of the response of solar spectral irradiance meter puts forward higher requirements for solar simulating light source, spectral continuity, stability and collimation. [2,3] The first thing to be solved is the power stability of multicolor light.…”

Section: Introductionmentioning

confidence: 99%

Power stability control based on white laser

Xiao

Li²,

Qi³

et al. 2023

International Conference on Precision Instruments and Optical Engineering (PIOE 2022)

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Aiming at the stability control requirements of high stability solar simulation light source, a white laser power stability control method based on quartz is proposed. The quartz plate is connected and fixed with the scanlab, and the relationship between the Angle of the incident light and the transmittance is taken as the signal regulation principle. When the scanlab rotates the quartz slab, the light signal transmitted by the quartz slab is adjusted. Based on Fresnel's Law, the rotation Angle and transmittance parameters under different wavelength of incident light are analyzed. And the rotation Angle range of quartz is calculated, which provides the output parameter support for realizing the power stability of light source. PID algorithm is used to modulate the error of the signal of the monitoring detector and the voltage corresponding to reference power so as to accurately adjust the output of scanlab. The stabilizer is used to control the power of the white laser, and the Trap detector is used to verify the level of power stability. The experiment results of the stability of the laser after modulation is as follows: the standard deviation CV is 0.069%/55min and the peak-to-peak fluctuation S V is ±0.302%/55min. Compared with the free-running result, S V and C V are improved to 1/15.83 and 1/33.04 respectively, and the power stability of the white laser is enhanced, meeting the stability requirement of 99.6%.

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Section: Introductionmentioning

confidence: 99%

Power stability control based on white laser

Xiao

Li²,

Qi³

et al. 2023

International Conference on Precision Instruments and Optical Engineering (PIOE 2022)

View full text Add to dashboard Cite

show abstract

“…Solar irradiance spectrometer is an instrument for high-precision and continuous spectral observation of the direct solar radiation received by the ground in the band of 380 nm ~ 2500 nm. Accuracy of spectral calibration plays an important role in the measurement of solar irradiance spectrometer [6] . At present, the spectral calibration method of solar irradiance spectrometer mostly adopts traditional characteristic spectral calibration method, that is, the instrument is used to directly observe the light source with characteristic spectral line, and the relationship between CCD image and corresponding characteristic spectral line is obtained.…”

Section: Introductionmentioning

confidence: 99%