Design and MAIT Status of the UH2.2 Adaptive Secondary Mirror

conference paper
2020
Jonker, W.A.

Kuiper, S.

Nijenhuis, J.R.

Dekker, A.

Bos, A.

Ven, E.A. van de

Chun, M.

Priem, H.

Breukers, M.
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.
Topics
Reluctance actuatorAdaptive mirrorUH88UH2.2ASM
TNO Identifier
952620
Repository link
https://resolver.tno.nl/uuid:23ef54b8-733b-4c1b-9894-23ed8050eba0
ISSN
0277-786X
Publisher
Society of Photo-Optical Instrumentation Engineers SPIE
Source title
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV, 13 December 2020
Editor(s)
Navarro, R.
Geyl, R.
Collation
14 p.
Place of publication
Bellingham, WA, USA
Files
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