| 用于拼接镜面共焦测量的三种位移传感器 |
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| 引用本文： | 王海涛,罗秋凤,徐欣圻,张振超.用于拼接镜面共焦测量的三种位移传感器[J].传感技术学报,2003,16(1):9-12. |
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| 作者姓名： | 王海涛 罗秋凤 徐欣圻 张振超 |
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| 作者单位： | 国家天文台南京天文光学技术研究所,南京,210042 |
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| 基金项目： | 中国科学院留学经费择优支持回国工作基金 (2 0 0 10 5 130 935 0 9) |
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| 摘 要： | 目前国际上大型光学望远镜大都采用拼接镜面的方法，用许多小口径的子镜拼成大口径的主镜。在拼接成大型主镜时要求各子镜镜面共面或共焦，这就要求子镜在镜面方向有位移促动器动作的同时，有相应的位移传感器来检测和控制。目前可用来测量这种位移的传感器有三种类型：电容式，电感式和光电式，其中电容式位移传感器是最成熟的一种，价格也是贵；光电式是最有潜力的一种。文中给出了这三种位移传感器的原理和特点。最后，指出了下一代大型拼接镜面光学望远镜中所用传感器的考虑。
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| 关 键 词： | 电容 电感 光纤 位移传感器 拼接镜面 大型光学望远镜 |
| 文章编号： | 1004-1699(2003)01-0009-04 |
Three Kinds of D isplacemen t Sen sor for Segmen tedM irror Co-focu |
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| W A N G H a itao LUO,Q iuf eng,X U X ing qi,ZH A N G Z heng chao.Three Kinds of D isplacemen t Sen sor for Segmen tedM irror Co-focu[J].Journal of Transduction Technology,2003,16(1):9-12. |
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| Authors: | W A N G H a itao LUO Q iuf eng X U X ing qi ZH A N G Z heng chao |
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| Affiliation: | N anj ing Institu te of A stronom ical Op tics & T echnology?N ational A stronom ical Observatories, N anj ing , 210042 P. R. Ch ina |
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| Abstract: | Segmented mirror method is widely adopted nowadays in the world. There are many segment mirrors to make up a large mirror which requires the segment mirrors co phase or co focus. It needs piston actuators to make the segmented mirror move and correspond displacement sensor to measure. Now there are three kinds of sensor which can be used for this task: capacitance style, inductance style and opto electronic style. The capacitance style is the maturest one, but the most expensive one. Opto-electronic style is the most potential one. The character and work theory of these three kinds of sensor are discussed in this paper. Some detail thoughts are pointed to the next generation of giant optical astronomical telescope. |
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| Keywords: | capacitance inductance optical fiber displacement sensor segmented mirror giant optical telescope |
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