Opto-mechanical structure of imager with two field of views and multiple channels

YU Xiang-yang

doi:10.3788/OPE.20152310.2870

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Opto-mechanical structure of imager with two field of views and multiple channels

Micro Nano Technology and Fine Mechanics | 更新时间：2020-08-13

- Opto-mechanical structure of imager with two field of views and multiple channels
- Optics and Precision Engineering Vol. 23, Issue 10, Pages: 2870-2876(2015)
- 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,中国,130033
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20152310.2870
  CLC： TH703;TP752
- Received：20 January 2015，
  
  Revised：17 February 2015，
  
  Published：25 October 2015
- 稿件说明：
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于向阳,. 双视场多通道成像仪的光机结构[J]. 光学精密工程, 2015,23(10): 2870-2876

YU Xiang-yang,. Opto-mechanical structure of imager with two field of views and multiple channels[J]. Editorial Office of Optics and Precision Engineering, 2015,23(10): 2870-2876
于向阳,. 双视场多通道成像仪的光机结构[J]. 光学精密工程, 2015,23(10): 2870-2876 DOI： 10.3788/OPE.20152310.2870.

YU Xiang-yang,. Opto-mechanical structure of imager with two field of views and multiple channels[J]. Editorial Office of Optics and Precision Engineering, 2015,23(10): 2870-2876 DOI： 10.3788/OPE.20152310.2870.

摘要

针对环境适应性和探测精度的要求

设计了双视场、多通道成像仪的光机结构

以获取高空间、时间覆盖和高垂直分辨率的大气图像和数据信息。根据光学探测和光学定位精度的要求

设计的光学系统结构以及对应的机械结构采用了天底和临边多方位观测模式。该结构通过柔性系统保证了成像仪在45°C的温差范围内能够正常工作。由于温差较大

系统中构建了CCD探测器裸片的精密定位与散热系统。为验证光机结构设计的正确性

对集成后的成像仪进行了光学系统性能检测。检测实验显示

边界温度状况下3个光学通道的分辨率均优于4 km

达到对地球临边和天底大气进行探测的需求。成像仪的质量为8.3 kg

其一阶基频大于100 Hz

最大应力为52.5 MPa。该光机结构设计合理、紧凑

满足刚度、强度以及目标探测要求

适合空间遥感的应用。

Abstract

To get the atmosphere images and data information with high spatio-temporal coverages and high vertical resolution

an opto-mechanical structure for the imager with two field of views and multiple channels was designed based on the environmental adaptability and accuracy requirements. In consideration of detection and position accuracy

a nadir and limb multiple-azimuth observation model was used in the optical system and corresponding mechanical structure. A flexible system was taken to allow the imager to operate at a temperature range of 45 ℃ normally. Duo to a larger temperature range

the precision positioning and cooling system for a CCD bare chip was constructed. To verify the feasibility of the opto-mechanical structure

the performance of the optical system in the imager was tested. The experimental results indicate that the spatial resolutions of the three optical channels are all better than 4 km under boundary temperature

which shows the imager can be used in limb and nadir detections. The imager shows its mass is 8.3 kg

the first order frequency is greater than 100 Hz

and the max stress is 52.5 MPa. The designed opto-mechanical structure is reasonable and compact

the opto-mechanical structure satisfies the requirements of strength

stiffness and target detection

and it is suitable for the space remote sensing.

关键词

Keywords

references

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