Title
Design and MAIT Status of the UH2.2 Adaptive Secondary Mirror
Author
Jonker, W.A.
Kuiper, S.
Nijenhuis, J.R.
Dekker, A.
Bos, A.
van de Ven, E.A.
Chun, M.
Priem, H.
Breukers, M.
Contributor
Navarro, R. (editor)
Geyl, R. (editor)
Publication year
2020
Abstract
An adaptive secondary mirror (ASM) is currently being developed for the UH2.2 telescope, consisting of a slumped 620mm convex aspherical facesheet, manipulated by 210 variable-reluctance actuators and supported on a siliconaluminium alloy support structure. The total power dissipation of the actuators is expected to be under 3 Watts. The ASM will weigh around 55kg, which is about 15kg lighter than the original passive secondary mirror (M2). We present the design, breadboarding activities and manufacturing status of this adaptive mirror. The project is on track for delivery of the ASM in Hawaii in the middle of 2021.
Subject
Reluctance actuator
Adaptive mirror
UH88
UH2.2
ASM
High Tech Systems & Materials
Industrial Innovation
To reference this document use:
http://resolver.tudelft.nl/uuid:23ef54b8-733b-4c1b-9894-23ed8050eba0
TNO identifier
952620
Publisher
Society of Photo-Optical Instrumentation Engineers SPIE, Bellingham, WA, USA
ISSN
0277-786X
Source
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV, 13 December 2020, 11451 (11451)
Document type
conference paper