| 反射镜的气压液压支承 |
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| 引用本文： | 包可人,顾伯伟,徐建华. 反射镜的气压液压支承[J]. 光学技术, 1991, 0(1) |
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| 作者姓名： | 包可人 顾伯伟 徐建华 |
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| 作者单位： | 中国科学院南京天文仪器厂(包可人，顾伯伟)，中国科学院南京天文仪器厂(徐建华) |
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| 摘 要： | 本文阐述了用于大型天文光学望远镜主、付镜的气压、液压支承的运行原理及结构形式和设计方法。对水银套侧支承,简要介绍了水银管套的制作与水银的灌注;对气垫底支承,简要介绍了随天顶距余弦变化的压力调节器。这种新颖的支承方式与传统的量锤杠杆浮动系统相比,其特点是结构简单、重量特轻、支承面大、支承力小而均匀,因此可更好的保持精确面形、增大反射镜的径厚比、大大减轻了镜室重量。
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| 关 键 词： | 气压支承 液压支承 |
Hydrostatic and Pneumatic Support of Mirror |
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| Abstract: | Hydrostatic and pneumatic supports of telescope mirror are described for its operating principle, structure type and design. For mercury tubeused as side support, it is syntheszed on filling of mercury and manufacture of tubular band. For air bed used as behind suppotr, it is introduced on high pre-cision pneumatic regulator of which the pressure varies with the cosine of zenith angle.These new support systems have advantages as compared with mechanical lever system: simpler structure, light weight, wider supporting area, uniform and small supporting force. So it will be used in large ratio of diameter thicku ess for reducing weight of mirror cell. |
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