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Proceedings Paper

The LINC-NIRVANA fringe and flexure tracker control system
Author(s): Steffen Rost; Andreas Eckart; Matthew Horrobin; Bettina Lindhorst; Christoph Rauch; Semir Smajic; Christian Straubmeier; Evangelia Tremou; Imke Wank; Jens Zuther; Jörg-Uwe Pott
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Paper Abstract

We present the latest status of the control system of the LN (LINC-NIRVANA) FFTS (Fringe and Flexure Tracker System) for the LBT. The software concept integrates the sensor data and control of the various subsystems and provides the interaction with the whole LN instrument. Varying conditions and multiple configurations for observations imply a flexible interconnection of the control loops for the hardware manipulators with respect to the time-critical data analysis of the fringe detection. In this contribution details of the implementation of the algorithms on a real-time Linux PC are given. By considering the results from simulations of the system dynamics, lab experiments, atmospheric simulations, and telescope characterization the optimal parameter setup for an observation can be chosen and basic techniques for adaption to changing conditions can be derived.

Paper Details

Date Published: 12 September 2012
PDF: 10 pages
Proc. SPIE 8445, Optical and Infrared Interferometry III, 844539 (12 September 2012);
Show Author Affiliations
Steffen Rost, Univ. zu Köln (Germany)
Andreas Eckart, Univ. zu Köln (Germany)
Matthew Horrobin, Univ. zu Köln (Germany)
Bettina Lindhorst, Univ. zu Köln (Germany)
Christoph Rauch, Univ. zu Köln (Germany)
Semir Smajic, Univ. zu Köln (Germany)
Christian Straubmeier, Univ. zu Köln (Germany)
Evangelia Tremou, Univ. zu Köln (Germany)
Imke Wank, Univ. zu Köln (Germany)
Jens Zuther, Univ. zu Köln (Germany)
Jörg-Uwe Pott, Max-Planck-Institut für Astronomie (Germany)

Published in SPIE Proceedings Vol. 8445:
Optical and Infrared Interferometry III
Françoise Delplancke; Jayadev K. Rajagopal; Fabien Malbet, Editor(s)

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