| 直线电机驱动的经纬仪调焦机构设计 |
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| 引用本文： | 张春林,宋立维. 直线电机驱动的经纬仪调焦机构设计[J]. 光机电信息, 2010, 27(11): 47-51 |
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| 作者姓名： | 张春林 宋立维 |
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| 作者单位： | 中国科学院长春光学精密机械与物理研究所,吉林长春130033 |
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| 摘 要： | 传统的凸轮调焦机构和丝杆丝母调焦机构存在结构复杂;加工、装调难度大;在传动链中引入齿轮传动,不可避免的会产生空回现象,进而导致整个机构存在传动效率低、响应速度慢、重复定位精度差等问题。为了弥补传统调焦机构的不足,设计了一种直线电机驱动的调焦机构,给出了新调焦机构的设计计算过程。直线电机驱动的调焦机构已成功应用于光电经纬仪中。实验证明,该机构的重复定位精度〈0.004mm,优于传统的调焦机构。
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| 关 键 词： | 光电经纬仪 调焦机构 直线电机 焦深 |
Design of Focusing Mechanism Drived by Linear Motor for Photoelectric Theodolite |
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| ZHANG Chun-lin,SONG Li-wei. Design of Focusing Mechanism Drived by Linear Motor for Photoelectric Theodolite[J]. OME Information, 2010, 27(11): 47-51 |
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| Authors: | ZHANG Chun-lin SONG Li-wei |
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| Affiliation: | (Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China) |
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| Abstract: | The traditional focusing mechanism has several disadvantages,such as complex structure,difficult alignment,slow response,poor positioning accuracy,etc.In order to compensate for the shortcomings of traditional focusing mechanism,a novel focusing mechanism driven by linear motor has been developed,and the calculation method about novel focusing mechanism is provided.This new focusing mechanism has been applied to a photoelectric the odolite.The measuring results show that the positioning precision of the focusing mechanism is less than 0.004 mm,which is better than that of the traditional focusing mechanism. |
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| Keywords: | photoelectric theodolite focusing mechanism linear motor focal depth |
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