The invention discloses a four-quadrant differential simulation double-hole sun sensor, and belongs to the technical field of spacecraft attitude measurement systems. The four-quadrant differential simulation double-hole sun sensor comprises a differential simulation double-hole sun sensor adopting a four-quadrant silicon photodiode and light shield structure, a light inlet hole module, a power supply module and a photoelectric conversion module, and further comprises a current-voltage conversion module, a voltage signal filtering module and a signal amplification processing module, wherein the light inlet hole module, the power supply module, the photoelectric conversion module, the electric signal filtering module and the signal amplification processing module all adopt a dual-redundancy design and are used for providing backup for a working part of the four-quadrant differential simulation double-hole sun sensor, so that the purposes of improving the reliability and enhancing the safe usability of the sun sensor are achieved; and various errors are quantitatively analyzed, an optimal balance point is achieved in actual design, an error compensation formula is provided, higher precision is achieved, and performance indexes such as the size and power consumption are improved.
本发明公开了一种四象限差动式模拟双孔太阳敏感器,属于航天器姿态测量系统技术领域。一种四象限差动式模拟双孔太阳敏感器,包括采用四象限硅光电二极管加遮光罩结构的差动模拟式双孔太阳敏感器、进光孔模块、电源模块和光电转换模块,还包括流压转换模块、电压信号滤波模块以及信号放大处理模块,所述进光孔模块、电源模块、光电转换模块、电信号滤波模块以及信号放大处理模块均采用双冗余设计,用来对四象限差动式模拟双孔太阳敏感器的工作部分提供备份,达到提高其可靠性以及增强其安全使用性的目的;对各种误差进行了定量分析,在实际设计中达到最佳平衡点,提出误差补偿公式,使其具有更高的精度,并提升了体积、功耗等性能指标。
Four-quadrant differential simulation double-hole sun sensor
一种四象限差动式模拟双孔太阳敏感器
2021-07-02
Patent
Elektronische Ressource
Chinesisch
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