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Lightweight Tip-tilt Mirror in Correlation Tracker System of the Space Solar Telescope

机译：太空太阳望远镜相关跟踪系统中的轻巧倾斜镜

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To compensate the image motion caused by random atmospheric turbulence and mechanical vibration, a high performance correlation tracker designed for the Space Solar Telescope (SST) has been realized in National Astronomical Observatories. Correlation tracker is to stabilize the image and provide the stabilized objective to CCD. The main optical telescope can obtain the highest spatial resolution and ensure the image processing. Tip-tilt mirror is the crucial element of the correlation tracker. The lightweight mirror is to adapt to work normally with space using and satisfy the space environmental requirement. Tip-tilt mirror's material is SiC. Confirming the appropriate joint with the platform and supporting mode through Finite Element Method. Then calculating the surface shape quality value (RMS) of the mirror effected by inertial load and temperature. The calculation results show that the tip-tilt mirror has enough stiffness and intensity. The mirror's surface shape quality value can satisfy the optical requirement of the correlation tracker system.
机译：为了补偿由随机的大气湍流和机械振动引起的图像运动，美国国家天文台已经实现了为太空太阳望远镜（SST）设计的高性能相关跟踪器。相关跟踪器用于稳定图像并为CCD提供稳定的物镜。主光学望远镜可以获得最高的空间分辨率并确保图像处理。倾斜镜是相关跟踪器的关键元素。轻巧的镜子适合于在太空中正常使用并满足太空环境要求。倾斜镜的材料是SiC。通过有限元方法确定与平台和支撑模式的适当连接。然后计算由惯性负载和温度影响的反射镜的表面形状质量值（RMS）。计算结果表明，该倾斜镜具有足够的刚度和强度。镜子的表面形状质量值可以满足相关跟踪器系统的光学要求。

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