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长春光学精密机械与物... [1]
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会议论文 [1]
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2012 [1]
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专题:长春光学精密机械与物理研究所
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Design and experimental research of a new type focus mechanism used in space-based telescope (EI CONFERENCE)
会议论文
2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012, August 5, 2012 - August 8, 2012, Chengdu, China
Wang D.
;
Jia X.
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提交时间:2013/03/25
The position of focal plane will be changed because of temperature fluctuation and vacuum environment. In order to make the telescope work well
positioning accuracy of the mechanism is 0.008mm. The performance satisfies the need of precision
a focusing mechanism is needed. To majority of large space-based telescopes
and the scheme design is reasonable and practicable. 2012 IEEE.
the general way to do this would be to use a reflector
which was located in the backfocal distance. One of typical schemes of this mechanism was introduced
however
because of the big axial size
the mechanism can't be used when the size of the enclosure was limited. A new type of focusing mechanism was introduced
which has such advantages of small size
high accuracy and low mass. The design and test methods had been discussed. According to the results
the repeatability positioning accuracy is 0.0025mm
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