13 September 2012 Intelligent vibration control of ELTs and large AO hardware
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Abstract
MPIA leads the construction of the LINC-NIRVANA instrument, the MCAO-supported Fizeau imager for the LBT, serves as pathfinder for future ELT-AO imagers in terms of size and technology. In this contribution, we review recent results and significant progress made on the development of key items of our stratgey to achieve a piston stability of up to 100nm during a science exposure. We present an overview of our vibration control strategies for optical path and tip-tilt stabilization, involving accelerometer based real-time vibration measurements, vibration sensitive active control of actuators, and the development of a dynamical model of the LBT. MPIA also co-develops the E-ELT first-light NIR imager MICADO (both SCAO and MCAO assisted). Our experiences, made with LINC-NIRVANA, will be fed into the MICADO structural AO design to reach highest on-sky sensitivity.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J.-U. Pott, M. Kürster, J. Trowitzsch, J. Borelli, R.-R. Rohloff, T. Herbst, M. Böhm, A. Keck, T. Ruppel, O. Sawodny, "Intelligent vibration control of ELTs and large AO hardware", Proc. SPIE 8447, Adaptive Optics Systems III, 84474V (13 September 2012); doi: 10.1117/12.927028; https://doi.org/10.1117/12.927028
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