Adaptive secondary mirrors performance and reliability improvements at the Large Binocular Telescope

Xianyu Zhang; Guido Brusa; Douglas Miller; Matthieu Bec; Julian Christou; Armando Riccardi; Marco Xompero

doi:10.1117/12.2560850

13 December 2020 Adaptive secondary mirrors performance and reliability improvements at the Large Binocular Telescope

Xianyu Zhang, Guido Brusa, Douglas Miller, Matthieu Bec, Julian Christou, Armando Riccardi, Marco Xompero

Proceedings Volume 11448, Adaptive Optics Systems VII; 114485O (2020) https://doi.org/10.1117/12.2560850
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

The adaptive secondary mirrors (ASMs), being an integral part of the telescope optical train, have huge advantages over other wave-front correctors. At the same time, because of this specific characteristic, high performance and high reliability is required from an ASM. In this paper, we report on algorithm/software developments at the Large Binocular Telescope designed to improve performance and reliability of the two 672-voice-coil-actuators ASMs. By making use of the ASMs telemetry, we are able to intervene when critical condition occurs, monitor the daily operation of the ASMs and review the long-term trends to plan future maintenance activities.

Citation Download Citation

Xianyu Zhang, Guido Brusa, Douglas Miller, Matthieu Bec, Julian Christou, Armando Riccardi, and Marco Xompero "Adaptive secondary mirrors performance and reliability improvements at the Large Binocular Telescope", Proc. SPIE 11448, Adaptive Optics Systems VII, 114485O (13 December 2020); https://doi.org/10.1117/12.2560850

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