Micro-vibration test and imaging analysis during space camera thermal-optical test
文献类型：会议论文
| 作者 | She, Wenji; Cui, Kai ; Gao, Xiong; Li, Shuxiu; Wang, Huan; Yang, Wei
|
| 出版日期 | 2019 |
| 会议日期 | 2019-07-07 |
| 会议地点 | Beijing, China |
| 关键词 | Space Camera Micro-vibration MTF Accelerometer Thermal-optical Test |
| 卷号 | 11341 |
| DOI | 10.1117/12.2543762 |
| 英文摘要 | The high resolution space optical camera imaging quality was sensitive to micro-vibration both in space and on the ground test. When performing the thermal-optical test within a vacuum tank, the affiliated air compressor pump, the turbo molecular pump and other pump assembles may cause micro-vibration transmitting to the payload. Firstly, the threshold and frequency bandwidth of the camera mounting flange micro-vibration were calculated based on the cameral optics and structure rigid-body theory. Secondly, three linear accelerometers were used for micro-vibration signals acquiring, and the identification plate was used for imaging. The signals and photos were acquired at the same time during the pumps turned on and turned off separately. Finally, the vibration caused by the pump assembles were analyzed after the thermal-optical experiment process, together with the images' MTF. It's shown that even the vacuum tank was isolated on the ground, the affiliated s' micro-vibration ed to the inside payload, causing a previous vibration The STD of Z axis micro-vibration signal more than 3 times from 2.1mg to 9.5mg, Exceeding the analysised threshold from 9Hz to 16Hz and near the 146Hz, the peak vealue was about 3 times of the threshold at 13 Hz, while the MTF declined little, just about 2.5%. © 2019 SPIE. |
| 产权排序 | 1 |
| 会议录 | AOPC 2019: Space Optics, Telescopes, and Instrumentation
 |
| 会议录出版者 | SPIE |
| 语种 | 英语 |
| ISSN号 | 0277786X;1996756X |
| ISBN号 | 9781510634541 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/93210]  |
| 专题 | 西安光学精密机械研究所_光电测量技术实验室 |
| 作者单位 | Photoelectric Measurement and Control Technology Research Department, Xi'An Institute of Optics AndPrecision Mechanics, CAS, Xi'An; 710119, China |
| 推荐引用方式 GB/T 7714 | She, Wenji,Cui, Kai,Gao, Xiong,et al. Micro-vibration test and imaging analysis during space camera thermal-optical test[C]. 见:. Beijing, China. 2019-07-07. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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