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MEMS based Sun sensor

机译：基于MEMS的太阳传感器

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摘要

Sun sensors have been widely used as a part of spacecraft attitude determination subsystems to provide a measurement of the Sun vector in spacecraft coordinates. An experimental MEMS based Sun sensor is presented. This prototype sun sensor is comprised of a silicon wafer mask with several hundred small apertures placed on top of a CCD focal plane array at a distance of 750 /spl mu/m. An image of the apertures is formed on the focal plane when the sun illuminates this setup. Sun angles can be derived by analyzing the image. The experimental data presented indicates that this sun sensor can achieve accuracies on the order of a few arcminutes or better. It is projected that this type of sun sensor, utilizing an active pixel sensor focal plane array, will be the size of three dimes stacked on top of each other. It will have a mass of less than 30 g and consume less than 20 mW. This will make this type of sun sensor ideal for micro/nano spacecraft and small rovers.
机译：Sun传感器已被广泛用作航天器姿态确定子系统的一部分，以提供航天器坐标中的太阳矢量的测量。提出了基于实验MEMS的太阳传感器。该原型太阳传感器由硅晶片掩模组成，硅晶片掩模，其中几百个小孔放置在CCD焦平面阵列的顶部，距离为750 / SPL MU / m。当阳光照射该设置时，在焦平面上形成孔的图像。通过分析图像可以派生太阳角。所提出的实验数据表明，该太阳传感器可以在几个Arcminutes的顺序上实现精度。预计这种类型的太阳传感器，利用有源像素传感器焦平面阵列，将是堆叠在彼此顶部的三维尺寸的大小。它的质量小于30克，并且消耗少于20兆瓦。这将使这种类型的太阳传感器适用于微/纳米航天器和小型群。

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