基于MEMS的数字式太阳敏感器光学系统设计  

Optical system design for MEMS based digital sun sensor

作　　者：魏新国[1] 江洁[1] 温志明[1] 张广军[1] 樊巧云[1] 

机构地区：[1]北京航空航天大学精密光机电一体化技术教育部重点实验室,北京100083

出　　处：《光学精密工程》2008年第8期1361-1366,共6页Optics and Precision Engineering

基　　金："十五"民用航天预研项目;"十一五"民用航天预研项目(No.C5120062104)

摘　　要：为数字式太阳敏感器设计了一种光学系统。从标量的菲涅尔-基尔霍夫衍射理论出发,建立了圆孔结构数字式太阳敏感器的光学系统成像模型,在计算机上实现光学系统的数值仿真,并根据数值仿真的结果进行了光学系统参数的设计。该光学系统参数为:距离4 mm,圆孔半径50μm,孔间距700μm。针对所设计的光学系统,利用太阳模拟器完成了地面实验。实验结果表明,光学系统设计合理,能满足微小卫星对敏感器小型化、高精度的要求。A reasonable optical system for Micro-electro-mechanical System（MEMS） based on digital sun sensor was designed. Based on scalar diffraction theory, the imaging model of the optical system for the sun sensor with a structure of circular aperture was developed. A computer simulation was car- ried out to obtain the parameters of optical system in the distance of 4 mm, aperture of 50 μm and the space between holes of 700 μm. The ground experiment was carried out for this optical system with a sun simulator, and the results show that the optical system is designed well and can meet the requirements of miniaturization and high accuracy of a sun sensor.

关 键 词：数字式太阳敏感器 光学系统 衍射 MEMS 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]