Active multimodal control of a 'floppy' telescope structure

机译：“软盘”望远镜结构的主动多峰控制

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Telescope structures are typically required to attain a certain degree of mechanical rigidity in order to achieve the desired optical performance goals, yet there are many applications where weight is either at a premium or local conditions exist that pre-empt optimal mechanical stability requirements. What is needed is a system which can sense and compensate for the opto-mechanical instabilities and correct them in real-time, preferably without "stealing" light from the optical system. We propose using tiny MEMS-based inertial reference sensors to measure the structural dynamics, and, using an appropriate model and coordinate transformations, correct in real-time the tip/tilt, focus, and possibly higher order errors of the optical system aberrations using MEMS-based deformable mirrors and/or our own tip/tilt + piston mirrors.

机译：为了实现所需的光学性能目标，通常需要望远镜结构达到一定程度的机械刚度，但是在许多应用中，要么重量过高，要么存在无法满足最佳机械稳定性要求的局部条件。所需要的是一种能够感测和补偿光机械不稳定性并实时校正它们的系统，最好是不“偷”光学系统的光。我们建议使用基于MEMS的微型惯性参考传感器来测量结构动力学，并使用适当的模型和坐标变换实时校正使用MEMS的光学系统像差的尖端/倾斜角，焦点和可能的高阶误差。基于可变形镜和/或我们自己的尖端/倾斜+活塞镜。

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来源
《Conference on High-Resolution Wavefront Control: Methods, Devices, and Applications IV, Jul 8-9, 2002, Seattle, Washington, USA》|2002年|p.74-81|共8页
会议地点 Seattle WA(US)
作者
Jeffrey T. Baker; Sergio Restaino; Ty Martinez; Jeffrey Friedman;
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作者单位

1155 Sandia Dr, Bosque Farms, NM87068;

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会议组织
原文格式 PDF
正文语种 eng
中图分类无线电电子学、电信技术;
关键词
accelerometer; adaptive optics; tip/tilt mirror; control loop micromachined; vibrations;

机译：加速度计自适应光学倾斜/倾斜镜;控制环微加工；震动;

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Active multimodal control of a 'floppy' telescope structure

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