Precision Analysis and Experiment of Focusing Mechanism of Space Hyperspectral Camera
文献类型：期刊论文
| 作者 | K.Wang; M.Xu; P.Xie; Z.Xu; S.Tao |
| 刊名 | Jixie Gongcheng Xuebao/Journal of Mechanical Engineering
 |
| 出版日期 | 2019 |
| 卷号 | 55期号:12页码:29-36 |
| 关键词 | Dynamics,Cameras,CMOS integrated circuits,Focusing,Hyperspectral imaging,Testing |
| ISSN号 | 05776686 |
| DOI | 10.3901/JME.2019.12.029 |
| 英文摘要 | For meeting the features and requirements of space hyperspectral camera, the image surface movable focusing mechanism is designed, the motion displacement is in the range of 3 mm, correcting deviated focal plane, and meeting the imaging quality requirements of hyperspectral camera. The working principle of the focusing mechanism is introduced, and the transmission curve and positioning accuracy are theoretically analyzed; Dynamic model of the focusing mechanism is established and the finite element analysis is performed. The relationship test method of code value and displacement of CMOS target plane is discussed in detail, and obtain the reliable focusing formula. The dynamic experiments show that the first-order natural frequency of the focusing mechanism is 182.7 Hz, which can effectively avoid the resonance phenomenon, the acceleration response is reasonable, and has good strength and stiffness; Before and after the dynamic experiments, the closed-loop accuracy tests are performed on the focusing mechanism, and the positioning accuracy is better than 6 m, therefore the focusing mechanism has good stability, which satisfies the 10 m design index and verifies the effectiveness of focusing formula and closed-loop control programs. At present, this set of focusing mechanism has been successfully on-orbit operation, and the indicators are in good condition, which satisfies the imaging quality requirements of hyperspectral camera. 2019 Journal of Mechanical Engineering. |
| URL标识 | 查看原文 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/63003]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | K.Wang,M.Xu,P.Xie,et al. Precision Analysis and Experiment of Focusing Mechanism of Space Hyperspectral Camera[J]. Jixie Gongcheng Xuebao/Journal of Mechanical Engineering,2019,55(12):29-36. |
| APA | K.Wang,M.Xu,P.Xie,Z.Xu,&S.Tao.(2019).Precision Analysis and Experiment of Focusing Mechanism of Space Hyperspectral Camera.Jixie Gongcheng Xuebao/Journal of Mechanical Engineering,55(12),29-36. |
| MLA | K.Wang,et al."Precision Analysis and Experiment of Focusing Mechanism of Space Hyperspectral Camera".Jixie Gongcheng Xuebao/Journal of Mechanical Engineering 55.12(2019):29-36. |
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