Manufacturing and integration status of the UH2.2 Adaptive Secondary Mirror
Manufacturing and integration status of the UH2.2 Adaptive Secondary Mirror
复制标题
UH2.2自适应次镜的制造和集成现状
DOI：
10.1117/12.2629254
复制
发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Nair, Manav
中科院分区：
文献类型：
--
作者：
Jonker, Wouter A.;Kuiper, Stefan;Kamphues, Fred;Bos, Arjo;Dekker, Bert;Chun, Mark R.;Benschop, André;Priem, Hans;Monna, Bert;Nair, Manav
由TNO协调的工业和学术合作伙伴联盟正在为夏威夷大学的2.2米望远镜[1][2][3]实现620 mm自适应次镜（ASM）。ASM由一个直径为620毫米的塌陷凸非球面镜壳组成，由安装在轻型支撑框架上的210个可变磁阻致动器操纵。镜壳通过弯沉以低成本制造到所需的精度。执行器由专用PWM电流驱动器驱动，并通过基于FPGA的实时接口进行控制。在几个实验室原型的成功性能测试之后，该项目将提供这种新技术的最终空中演示。我们报告的主要子系统的制造和测试，并作为一个整体的ASM的集成状态。
A consortium of industrial and academic partners, coordinated by TNO, is working on the realization of a 620mm adaptive secondary mirror (ASM) for the University of Hawaii’s 2.2-meter telescope [1][2][3]. The ASM consists of a 620mm-diameter slumped convex aspherical mirror shell, manipulated by 210 variable-reluctance actuators mounted on a light-weighted support frame. The mirror shell is manufactured to the required accuracy at low cost through slumping. The actuators are driven by dedicated PWM current drivers and commanded through a real-time FPGA-based interface. After successful performance testing of several laboratory prototypes[4], this project will provide the definitive on-sky demonstration of this new technology. We report on the manufacturing and testing of the major subsystems, and on the integration status of the ASM as a whole.