光学技术, 2006, 32 (1): 0042, 网络出版: 2010-06-03   

太阳紫外光谱辐射地面测量装置中的入射光学系统的研制

Design of cosine-entrance optics for the solar ultraviolet spectral radiation measuring apparatus
作者单位
1 中国计量科学研究院 光学处,北京 100013
2 清华大学 精密仪器与机械学系,北京 100084
摘要
以聚四氟乙烯(PTFE)材料制成的积分球为基础,研制了7种组合型入射光学系统,并对它们的余弦特性进行了测试。其中PTFE积分球、磨砂石英半球型漫射器和修正环的组合型入射光学系统的设计具有创新性。在±30°入射角范围内,余弦误差小于0.23%;在±60°入射角范围内,余弦误差小于1.14%;在±75°入射角范围内,余弦误差小于2.5%;在±80°入射角范围内,余弦误差小于5.5%,积分余弦误差〈f2〉=0.94%,指标达到国际先进水平。组合型入射光学系统能够很好地满足太阳紫外光谱辐射地面测量的需求。
Abstract
Based on PTFE integrating sphere,seven kinds of cosine-entrance systems were designed and compared,and a special cosine measurement apparatus was designed to measure the angular response of the entrance optics. Experiment results show that,the regular response is ideal for the combination system composed by a PTFE integrating sphere,a spherical ground quartz diffusers and a special correction ring. The integral cosine error of this entrance optics is 〈f2〉= 0.94 %. The cosine error is less than 0.23 % for an incidence angle of θ= ± 30°,less than 1.14 % at θ = ± 60°,less than 2.58 % at θ = ± 75°,and less than 5.50% at θ= ±80°. With the new entrance optics,the angular response of the solar UV spectral radiation measurement system will be promoted and the measurement uncertainty can be improved also.

代彩红, 于家琳, 于靖, 殷纯永. 太阳紫外光谱辐射地面测量装置中的入射光学系统的研制[J]. 光学技术, 2006, 32(1): 0042. DAI Cai-hong, YU Jia-lin, YU Jing, YIN Chun-yong. Design of cosine-entrance optics for the solar ultraviolet spectral radiation measuring apparatus[J]. Optical Technique, 2006, 32(1): 0042.

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