一种大视场姿态角传感器的光学系统设计

Optical system design for large FOV attitude angle sensor

以光电准直和针孔成像原理为基础,结合虚拟扩展成像面技术,提出了一种新型的大视场二维姿态角测量方案。以针孔光阑和高精度反射镜组构成其光学系统,从菲涅尔-基尔霍夫衍射理论出发,建立了光学系统的成像模型,通过计算机数值仿真,设计了光学系统的模式和最优参数。按照设计参数搭建实际测量系统,对设计方案进行了分析验证。结果表明,光学系统设计合理,可以满足大视场姿态角传感器的设计要求。

Based on photoelectric collimating and pinhole imaging theory, combined with virtual extension of imaging, a new type of large FOV two dimension attitude angle measuring method is proposed. Pinhole aperture and a group of high precision reflectors are set as the optical system. Directed by Fresnel-Kirchhoff diffraction theory, the imaging model of the optical system is established. The model and optimized parameters of the optical system are designed via computer numeric simulation. A hardware measuring system based on the simulation result is set up to analyze and verify the design. The results show that the optical system design is reasonable and can meet the requirements of large FOV attitude angle sensor.