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光电指向器的轴系精度直接影响到光电系统的整体性能指标。分析了光电指向器轴系之间精度影响关系,根据对方位轴系、俯仰轴系和视轴轴系的各项误差源分析计算出各轴系误差值,结合在安装过程中方位轴系误差与俯仰轴系误差建立数学模型,寻找方位角和俯仰角与方位轴系、俯仰轴系、视轴轴系的误差之间的耦合关系,并将三个轴系误差进行耦合后建立数学模型分析。该分析方法和结果为光电指向器的多轴系结构耦合误差设计提供了理论及工程依据。
Photoelectric pointer shaft accuracy directly affects the overall performance of the photoelectric system performance indicators. The relationship between the accuracy of photoelectric pointer axis system was analyzed. According to the error sources of azimuth axis system, pitch axis system and visual axis axis system, the error values of each axis system were calculated. Combined with the error of azimuth axis during installation And pitch axis error to establish mathematical model to find the azimuth and pitch angle and the azimuth axis, pitch axis, axis axis of the error between the coupling relationship, and the coupling of the three axis errors after the establishment of mathematical model analysis . The analysis method and result provide the theoretical and engineering basis for the design of multi-axis structure coupling error of photoelectric pointer.