Development of focal plane module for three-line LMCCD mapping cameras

ZHOU Huai-de; LIU Jin-guo; ZHANG Li-ping; QIAO Ke; CHEN Jia-yu; KONG De-zhu

doi:10.3788/OPE.20122007.1492

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Development of focal plane module for three-line LMCCD mapping cameras

更新时间：2020-08-12

- Development of focal plane module for three-line LMCCD mapping cameras
- Optics and Precision Engineering Vol. 20, Issue 7, Pages: 1492-1499(2012)
- 作者机构：
  
  1. 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
  2. 中国科学院研究生院北京,100039
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20122007.1492
  CLC： V447.3;TN431.2
- Received：17 April 2012，
  
  Revised：18 May 2012，
  
  Published Online：10 July 2012，
  
  Published：10 July 2012
- 稿件说明：
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周怀得, 刘金国, 张立平, 乔克, 陈佳豫, 孔德柱. 线阵-面阵CCD三线阵立体测绘相机焦平面组件的研制[J]. 光学精密工程, 2012,20(7): 1492-1499

ZHOU Huai-de, LIU Jin-guo, ZHANG Li-ping, QIAO Ke, CHEN Jia-yu, KONG De-zhu. Development of focal plane module for three-line LMCCD mapping cameras[J]. Editorial Office of Optics and Precision Engineering, 2012,20(7): 1492-1499
周怀得, 刘金国, 张立平, 乔克, 陈佳豫, 孔德柱. 线阵-面阵CCD三线阵立体测绘相机焦平面组件的研制[J]. 光学精密工程, 2012,20(7): 1492-1499 DOI： 10.3788/OPE.20122007.1492.

ZHOU Huai-de, LIU Jin-guo, ZHANG Li-ping, QIAO Ke, CHEN Jia-yu, KONG De-zhu. Development of focal plane module for three-line LMCCD mapping cameras[J]. Editorial Office of Optics and Precision Engineering, 2012,20(7): 1492-1499 DOI： 10.3788/OPE.20122007.1492.

摘要

介绍了线阵-面阵CCD(LMCCD)制式相机的相关原理

提出实现LMCCD相机的关键在于相机焦平面组件的研制。给出了LMCCD相机焦平面组件在研制过程中的关键技术

如LMCCD像面基板与CCD的高精度拼接

焦平面组件电子学部分的低噪声、高集成度设计

焦平面组件在真空环境下的热噪声抑制和热传导设计

以及焦平面组件的装配和焊接等。最后

给出了研制和测试结果。LMCCD拼接的共面精度优于5 μm

平移量和平行度均优于2 μm;在典型工作情况下

实验室测试信噪比优于90;在15 min的工作周期下

焦面组件的温度控制在30℃以下。这些结果满足LMCCD制式相机关于CCD拼接、焦面温度控制和信噪比的要求。

Abstract

This paper introduces the working principles of Line-Matrix CCD( LMCCD) mapping cameras firstly and points out that the key step to realize the LMCCD camera is to develop focal plane modules. Some pivotal techniques used in the reality process of a LMCCD mapping space camera are introduced

such as stitching line and matrix CCDs together on an image base board in high precision

designing elements in high density and very low noise

controlling dark noises related to the temperature and the heat produced by the CCD under a vacuum environment

assembling the circuit board and the focal plane and soldering the CCD. Finally

it gives developing and experimental results of the LMCCD mapping camera. The results show that the stitching precision of line and matrix CCDs in coplanarity is better than 5 μm

and both the amounts of moving and parallelism are better than 2 μm. The Signal to Noise ratio(SNR) tested in laboratory is better than 90 under a typical working condition(the solar incidence angle is 30° and the reflectivity of the earth's surface is 0.3). Furthermore

the temperature of the focal plane module can be controlled under 30℃ in a working period of 15 min. All of these results satisfy the requirements of the LMCCD for the CCD stitching

temperature control and the SNR.

关键词

Keywords

references

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国防科大机电工程与自动化学院国防科技大学国防科技大学机电工程与自动化学院

中国科学院长春光学精密机械与物理研究所

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