采用光学非线性补偿的两轴微型太阳敏感器

Two-axis micro sun sensor using optical nonlinear compensation

卫星的小型化发展趋势相应地要求姿态敏感器件必须小型化。该文介绍了一种采用光学非线性补偿方法的两轴微型太阳敏感器技术。该敏感器在两个轴上的测量范围可以同时达到120°(±60°),测量精度优于0.1°,而其外结构尺寸只有50mm×50mm×25mm,总质量只有78g,总功耗小于24mW。其体积小、质量小、功耗低等特点可以满足微小卫星等航天系统对姿态测量敏感器部件的要求。该文给出了这种微型太阳敏感器的理论工作原理与实验测试结果。

The miniaturization of satellites requires miniaturization of the attitude determination sensors. A two-axis micro sun sensor technology was developed using optical nonlinear compensation. The field of view at the two sensitive axes of the sensor can reach 120°(±60°), while the measurement accuracy exceeds 0.1°. The sensor's physical dimension is only 50 mm×50 mm×25 mm, the mass is only 78 g, and the power consumption is less than 24 mW. As a micro attitude sensor, the excellent features of low power, small size and light mass meet the demands of micro spacecraft systems such as micro satellites. The micro sun sensor theoretical design principles and test results are detailed in the paper.