Development of key adaptive mirror technologies for the European Extremely Large Telescope (ELT)

欧洲极大望远镜（ELT）关键自适应镜技术的开发

• 批准号: ST/F003323/1
• 负责人: Martin Strangwood
• 金额: $ 1.17万
• 依托单位: University of Birmingham
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2008
• 资助国家: 英国
• 起止时间: 2008 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FF003323%2F1
• 关键词: Development; key; adaptive; mirror; technologies

Low density substrate materials based on silicon carbide variants may have the potential for use as a shell material for large deformable mirrors. Instrumentation optics for ELTs will also utilise optics of significant size, and will be mass-sensitive. By taking existing materials and components and modifying them to meet the demands of European ELT requirements we will demonstrate a cost-effective and risk-mitigating technological advantage. We will demonstrate that 'sandwiching' silicon carbide in a material such as silicon dioxide will lead to a technological advantage to a novel concept of large deformable mirror shell. We will analyse the mechanical integrity for the application and demonstrate control of the surface position and deformation using existing Piezo actuators modified with a surface sensing transducer.

基于碳化硅变体的低密度衬底材料可能具有用作大型可变形反射镜的壳材料的潜力。 ELT 的仪器光学器件也将利用大尺寸的光学器件，并且对质量敏感。通过采用现有材料和组件并对其进行修改以满足欧洲 ELT 要求，我们将展示具有成本效益和降低风险的技术优势。我们将证明，将碳化硅“夹在”二氧化硅等材料中将为大型可变形镜壳的新颖概念带来技术优势。我们将分析应用的机械完整性，并使用经过表面传感传感器修改的现有压电执行器来演示对表面位置和变形的控制。