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1. 中国科学院 长春光学精密机械与物理研究所, 吉林 长春 130033
2. 中国科学院 研究生院,北京 100039
收稿日期:2008-08-06,
修回日期:2008-09-17,
网络出版日期:2009-01-25,
纸质出版日期:2009-01-25
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万秋华, 孙莹, 王树洁, 佘容红, 卢新然, 梁立辉. 双读数系统的航天级绝对式光电编码器设计[J]. 光学精密工程, 2009,17(1): 52-57
WAN Qiu-hua, SUN Ying, WANG Shu-jie, SHE Rong-hong, LU Xin-ran, LIANG Li-hui. Design for spaceborne absolute photoelectric encoder of dual numerical system[J]. Editorial Office of Optics and Precision Engineering, 2009,17(1): 52-57
万秋华, 孙莹, 王树洁, 佘容红, 卢新然, 梁立辉. 双读数系统的航天级绝对式光电编码器设计[J]. 光学精密工程, 2009,17(1): 52-57 DOI:
WAN Qiu-hua, SUN Ying, WANG Shu-jie, SHE Rong-hong, LU Xin-ran, LIANG Li-hui. Design for spaceborne absolute photoelectric encoder of dual numerical system[J]. Editorial Office of Optics and Precision Engineering, 2009,17(1): 52-57 DOI:
为了有效地减小航天相机的体积
减轻其重量并满足冷备份要求
设计了双读数系统的航天级绝对式光电编码器。根据航天相机的要求
对绝对式光学码盘进行了小型化设计;根据码盘的特点
研制了双读数狭缝盘及读数系统;最后
对设计的双读数系统的航天级绝对式光电编码器进行了精度检测。实验结果表明:双读数系统的航天级绝对式光电编码器外形尺寸为50 mm32 mm、重量为150 g、分辨力为20、精度30。本编码器具有读数系统冷备份功能
且体积小、重量轻、抗干扰能力强
可满足航天相机的要求。
In order to minimize volume
lighten the weight of a spaceflight camera effectively and satisfy the requirement of cold copy
the design for spaceborne absolute photoelectric encoder of dual numerical system is put forward in this paper. Based on the requirements of the spaceflight camera
the miniaturization design is applied to absolute optical code disc; Then
a dual numerical reading slit disc and a numerical reading system are developed according to the characteristic of code disc; finally
the precision test is implemented on the spaceborne absolute photoelectric encoder with dual numerical reading system. The experimental result shows that the photoelectric encoder in outline dimension of 50 mm32 mm
weight of 150 g can offer its resolution of 20and precision lower than 30. The encoder has the function of cold copy for numerical reading system
and shows its advantages of small volume
light weight and high resistance
which can meet the requirements of spaceflight camera.
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