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太阳模拟器的主要设计指标包括辐照强度、辐照均匀性、辐照稳定度及太阳光谱的匹配,然而太阳真实发射的平行光束有一定的张角(准直角),在日地平均距离处太阳的准直角为±16′,设计一高准直的太阳模拟器才能最真实反映外空间的太阳辐射,目前这种高准直太阳模拟器的研究较少,该文对准直角为±16′的太阳模拟器进行详细设计,具体指标达到辐照面积Φ50 mm,不均匀度为±8%,不稳定性为±5%/h,辐照强度达到0.1 S。
The main design specifications for the solar simulator include irradiance, irradiance uniformity, irradiance stability, and solar spectrum matching. However, the actual solar radiation emitted by the parallel beams has a certain angle of aperture (collimation angle) The collimation angle of the sun is ± 16 ’. Therefore, designing a highly collimated solar simulator can most truly reflect the solar radiation in the outer space. At present, the research on this highly collimated solar simulator is less, ’Solar simulator detailed design, the specific indicators reached the irradiation area of Φ50 mm, unevenness of ± 8%, instability of ± 5% / h, the irradiation intensity of 0.1 S.