摘要
叙述了对离轴四反光谱成像仪进行动态特性分析的重要性。介绍了离轴四反光谱成像仪的光学系统和结构组成。简述了动态特性分析的基础理论,描述了离轴四反光谱成像仪的实体及有限元模型。给出了离轴四反光谱成像仪的动态特性分析模态频率数据,结果表明其基频为624.9Hz,满足设计要求。
The importance of dynamic characteristic analysis of the four-mirror off-axis reflective spectrum imager is explained.Optical system and structural composition of the four-mirror off-axis reflective spectrum imager are introduced.Theory basis of dynamic characteristic analysis is simply described.Solid model and meshed model of the four-mirror off-axis reflective spectrum imager are described either.Modal frequency data of dynamic characteristic analysis of the four-mirror off-axis reflective spectrum imager is calculated.The result is that the base frequency of the four-mirror off-axis reflective spectrum imager is 624.9Hz.Design requirements are satisfied.
出处
《光学技术》
CAS
CSCD
北大核心
2010年第5期721-724,共4页
Optical Technique
基金
国家自然科学基金项目(No.60538020)
关键词
离轴四反
光谱成像仪
动态特性
four-mirror off-axis reflective
spectrum imager
dynamic characteristic
