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介绍了一种数字太阳敏感器的电激励测试系统的设计。设计中采用FPGA为数据处理、时序控制核心,采用数模转换器以及运算放大器构成模拟输出模块,采用串口与上位机进行通信。设计采用一种整体偏移的方法来模拟仿真太阳敏感器的图像探测器的输出。系统输出的电信号满足太阳敏感器大视场、高精度的要求,目前数字式太阳敏感器高精度电激励信号源系统已经在太阳敏感器研制过程中的地检实验中得到应用。
The design of a kind of electric excitation test system of digital sun sensor is introduced. FPGA design for the data processing, timing control of the core, the use of digital-analog converters and op amp analog output module, the use of serial communication with the host computer. The design uses a method of global offset to simulate the output of an image sensor that emulates a sun sensor. The electrical signal output by the system meets the requirements of large field of view and high precision of the solar sensor. At present, the digital high-precision electric signal source system of the solar sensor has been applied in the ground inspection experiment during the development of the solar sensor.