CyberinfraV1, Main, Exploration, bibRecord, 000A48

The LBT real-time based control software to mitigate and compensate vibrations

Identifieur interne : 000A48 ( Main/Exploration ); précédent : 000A47; suivant : 000A49

The LBT real-time based control software to mitigate and compensate vibrations

Auteurs : J. Borelli [Allemagne] ; J. Trowitszch [Allemagne] ; M. Brix [Allemagne] ; M. Kürster [Allemagne] ; W. G Ssler [Allemagne] ; T. Bertram [Allemagne] ; F. Briegel [Allemagne]

Source :

Proceedings of SPIE, the International Society for Optical Engineering [ 0277-786X ] ; 2010.

RBID : Pascal:11-0004506

Descripteurs français

Pascal (Inist)
- Temps réel, Monitorage, Système adaptatif, Calculateur embarqué, Vibration, Télescope, Miroir, Indice aptitude, Interférométrie, Méthode adaptative, Laser, Archivage électronique, Chemin optique, Boucle commande, Système Linux, ..

English descriptors

KwdEn :
- Adaptive method, Adaptive system, Boarded computer, Capability index, Control loop, Electronic storage, Interferometry, Laser, Linux system, Mirror, Monitoring, Optical path, Real time, Telescope, Vibration.

Abstract

The Large Binocular Telescope (LBT) uses two 8.4 meters active primary mirrors and two adaptive secondary mirrors on the same mounting to take advantage of its interferometric capabilities. Both applications, interferometry and AO, are sensitive to vibrations. Several measurement campaigns have been carried out at the LBT and their results strongly indicate that a vibration monitoring system is required to improve the performance of LINC-NIRVANA, LBTI, and ARGOS, the laser guided ground layer adaptive optic system. Currently, a control software for mitigation and compensation of the vibrations is being designed. A complex set of algorithms collects real-time vibration data, archiving it for further analysis, and in parallel, generating the tip-tilt and optical path difference (OPD) data for the control loop of the instruments. A real-time data acquisition device equipped with embedded real-time Linux is used in our systems. A set of quick-look tools is currently under development in order to verify if the conditions at the telescope are suitable for interferometric/adaptive observations.

Affiliations:

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Le document en format XML

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<front><div type="abstract" xml:lang="en">The Large Binocular Telescope (LBT) uses two 8.4 meters active primary mirrors and two adaptive secondary mirrors on the same mounting to take advantage of its interferometric capabilities. Both applications, interferometry and AO, are sensitive to vibrations. Several measurement campaigns have been carried out at the LBT and their results strongly indicate that a vibration monitoring system is required to improve the performance of LINC-NIRVANA, LBTI, and ARGOS, the laser guided ground layer adaptive optic system. Currently, a control software for mitigation and compensation of the vibrations is being designed. A complex set of algorithms collects real-time vibration data, archiving it for further analysis, and in parallel, generating the tip-tilt and optical path difference (OPD) data for the control loop of the instruments. A real-time data acquisition device equipped with embedded real-time Linux is used in our systems. A set of quick-look tools is currently under development in order to verify if the conditions at the telescope are suitable for interferometric/adaptive observations.</div>
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The LBT real-time based control software to mitigate and compensate vibrations

The LBT real-time based control software to mitigate and compensate vibrations

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri