星载多谱段双视场紫外大气探测仪

发布时间：2017-12-30 20:10

本文关键词：星载多谱段双视场紫外大气探测仪　出处：《光学精密工程》2016年09期 　论文类型：期刊论文

【摘要】：针对天底和临边综合紫外大气探测的需求,分析了天底和临边双视场观测原理和技术指标,设计和研制了多谱段双视场紫外大气探测仪原理样机。该样机光学系统由前透镜组、环形透镜、中继透镜组和窄带滤光片组成,3个工作谱段的中心波长分别为265nm、295nm和360nm,带宽均小于20nm,天底视场为10°,临边视场为360°(141.8°~146.6°),焦距为5mm,F数为3.3,通过切换窄带滤光片完成3个谱段的探测。多谱段双视场紫外大气探测仪整机质量约为3kg,体积为Φ90mm×300mm。对样机的静态传递函数和像面照度均匀性进行了测试。测试结果表明,在特征频率38.5lp/mm处,天底视场的静态传递函数为0.24,临边视场的静态传递函数为0.22,像面照度均匀性为94%,均优于设计指标要求。该原理样机体积小、重量轻,满足空间光学遥感仪器小型化和轻量化的要求。
[Abstract]:The nadir and limb of UV atmospheric detection requirements, analyzes the nadir and limb dual field observation principle and technical index, the design and development of multi spectral dual field ultraviolet atmospheric detector principle prototype. The prototype optical system is composed of a front lens group, annular lens, relay lens group and narrowband filter. The center wavelength of 3 working bands were 265nm, 295nm and 360nm, the bandwidth is less than 20nm, the field of view is 10 degrees, the edge field is 360 degrees (141.8 degrees ~146.6), the focal length is 5mm, the F number is 3.3, the completion of 3 spectral detection by switching the narrowband filter. Spectrazonal dual field ultraviolet atmospheric detector machine quality is about 3kg, the volume is 90mm in diameter and 300mm. static on the prototype of the transfer function and the illumination uniformity were tested. The test results show that the characteristic frequency of 38.5lp/mm, the static field nadir transfer function is 0.24, near field The static transfer function is 0.22, and the illuminance uniformity of the image plane is 94%, which is better than the design requirement. The prototype is compact and light weight, and meets the requirement of miniaturization and lightweight of the space optical remote sensing instrument.

【作者单位】：中国科学院长春光学精密机械与物理研究所;
【基金】：国家自然科学基金资助项目(No.41575023,No.41105014) 中国科学院长春光学精密机械与物理研究所科技前沿领域创新项目
【分类号】：V447.1
【正文快照】： 1引言空间紫外大气探测是全球空气质量和气候探测的重要途径之一。根据观测路径的不同,空间紫外大气探测分为天底观测方式、临边观测方式和掩星观测方式。其中,天底观测方式易于获得较宽的空间覆盖,对于大气成分的柱总量的反演有优势;临边和掩星观测方式易于获得较高的垂直分

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