Guo Junli, An Yuan, Li Zongxuan, Li Kai. Bonding technique of mirror components in space camera[J]. Infrared and Laser Engineering, 2016, 45(3): 313002-0313002(7). doi: 10.3788/IRLA201645.0313002
| Citation:
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Guo Junli, An Yuan, Li Zongxuan, Li Kai. Bonding technique of mirror components in space camera[J]. Infrared and Laser Engineering, 2016, 45(3): 313002-0313002(7). doi: 10.3788/IRLA201645.0313002
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Bonding technique of mirror components in space camera
- 1.
Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;
- 2.
University of Chinese Academy of Sciences,Beijing 100049,China
- Received Date: 2015-07-06
- Rev Recd Date:
2015-08-10
- Publish Date:
2016-03-25
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Abstract
In order to ensure the surface form precision of a mirror whose caliber is 320 mm changes as small as possible before and after bonding, while static and dynamic stiffness of the mirror components meet the requirements, bonding technique of primary mirror in space camera was studied. Firstly, specific bonding parameters of six bonds and round bonds were achieved. Then, the finite element analysis for two bonding options was carried out to analyze static stiffness and optical properties. Finally, when the mirror's surface form precision was 0.030(=632.8), the surface form precision of the mirror was tested. Besides, vibration test of mirror components was conducted. Analysis and experiment results indicate that after using six bonds option to assemble the mirror components, its first order frequency is 144.194 Hz and static and dynamic stiffness meet the requirements. Compared to round bonds option, the surface form precision of the mirror improves 13.5%. This results mean that the six bonds option is better for bonding the mirror whose caliber is near 320 mm.
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