Spaceborne multiband UV atmospheric sounder with two fields

Qing-sheng XUE

doi:10.3788/OPE.20162409.2101

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Spaceborne multiband UV atmospheric sounder with two fields

Modern Applied Optics | 更新时间：2020-07-07

- Spaceborne multiband UV atmospheric sounder with two fields
- Optics and Precision Engineering Vol. 24, Issue 9, Pages: 2101-2108(2016)
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20162409.2101
  CLC： V447.1;V476
- Received：14 January 2016，
  
  Accepted：07 March 2016，
  
  Published：2016-09
- 稿件说明：
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Qing-sheng XUE. Spaceborne multiband UV atmospheric sounder with two fields[J]. Optics and precision engineering, 2016, 24(9): 2101-2108.
DOI：

Qing-sheng XUE. Spaceborne multiband UV atmospheric sounder with two fields[J]. Optics and precision engineering, 2016, 24(9): 2101-2108. DOI： 10.3788/OPE.20162409.2101.

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265 nm、295 nm和360 nm，带宽均小于20 nm，天底视场为10°，临边视场为360°（141.8°~146.6°），焦距为5 mm，

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3 kg，体积为

90 mm×300 mm。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38.5 lp/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

To comprehensively implement the UV atmospheric sounding of nadir and limb fields

the principle of simultaneously sounding of nadir and limb fields was analyzed and technical specifications were analyzed. Then a prototype of multiband UV atmospheric sounder with two fields was designed and developed. The optical system of the prototype is composed of a fore of lens

an annular lens

a relay of lens

and a narrowband filter. The central wavelengths of three working spectral ranges are 265 nm

295 nm

and 360 nm

the bandwidth is less than 20 nm. The nadir field and the limb field are 10°

and 360°(141.8°-146.6°)

respectively

the focal length is 5 mm

and the

number is 1:3.3. Three wavebands were detected individually by switching UV narrowband filters. The total mass of the prototype is approximately 3 kg

and its volume is about

90 mm×300 mm. The spatial resolution and illuminance uniformity of image plane of the prototype were tested. The test result demonstrates that the static MTFs of nadir field and limb field are 0.25 and 0.22 respectively at a characteristic frequency of 38.5 lp/mm and the illuminance uniformity of image plane is 94%. Both MTFs and illuminance uniformity are better than that of design requirements. The prototype shows a smaller volume and a lighter weight

and satisfies the miniaturized and lightened requirements of spaceborne instruments.

关键词

Keywords

references

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