Dr. Nicholas C. Kornweibel Profile

Dr. Nicholas C. Kornweibel

at European Southern Observatory

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Author

Publications (20)

Proceedings Article | 29 August 2022 Presentation + Paper

The ELT high level coordination and control

Gianluca Chiozzi, Nick Kornweibel, Ulrich Lampater, Babak Sedghi, Heiko Sommer

Proceedings Volume 12189, 1218919 (2022) https://doi.org/10.1117/12.2630435

KEYWORDS: Telescopes, Control systems, Adaptive optics, Device simulation, Interfaces, Standards development

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Proceedings Article | 10 July 2018 Paper

Adaptive optics at the ESO ELT

Henri Bonnet, Fabio Biancat-Marchet, Martin Dimmler, Michael Esselborn, Nick Kornweibel, Miska Le Louarn, Pierre-Yves Madec, Enrico Marchetti, Michael Müller, Sylvain Oberti, Jérôme Paufique, Lorenzo Pettazzi, Babak Sedghi, Jason Spyromilio, Stefan Stroebele, Christophe Vérinaud, Elise Vernet

Proceedings Volume 10703, 1070310 (2018) https://doi.org/10.1117/12.2312407

KEYWORDS: Telescopes, Adaptive optics, Wavefronts, Wavefront sensors, Segmented mirrors, Active optics

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Proceedings Article | 10 July 2018 Presentation

ESO ELT M1 local control system software design and development status (Conference Presentation)

Javier Argomedo, Luigi Andolfato, Carlos Diaz Cano, Robert Frahm, Thomas Grudzien, Nick Kornweibel, Diogo Ribeiro Gomes dos Santos

Proceedings Volume 10707, 107070V (2018) https://doi.org/10.1117/12.2313344

KEYWORDS: Software development, Control systems design, Mirrors, Liquid crystals, Sensors, Actuators, Switches, Photonic integrated circuits, Control systems, Electronics

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Proceedings Article | 6 July 2018 Paper

MELT: an optomechanical emulation testbench for ELT wavefront control and phasing strategy

T. Pfrommer, S. Lewis, J. Kosmalski, P. La Penna, C. Frank, I. Guidolin, S. Leveque, A.-L. Cheffot, H. Bonnet, N. Kornweibel, J. Spyromilio

Proceedings Volume 10700, 107003F (2018) https://doi.org/10.1117/12.2313537

KEYWORDS: Telescopes, Sensors, Wavefronts, Control systems, Mirrors, Diagnostics, Interfaces, Near infrared, Imaging systems, Wavefront sensors

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We present an optomechanical test bench setup (MELT) for testing and validating key functionalities to be used on the Extremely Large Telescope (ELT) during the periods of system verification, wavefront control commissioning, through the handover to science, up to regular diagnostic, monitoring, and validation tasks during operations.

The main objectives of MELT are to deploy and validate the telescope control system, to deploy and validate wavefront control algorithms for commissioning and operations, as well as to produce and validate key requirements for the phasing and diagnostic station (PDS) of the ELT.

The purpose of MELT is to deploy optomechanical key components such as a segmented primary mirror, a secondary mirror on a hexapod, an adaptive fourth mirror, and a fast tip/tilt mirror together with their control interfaces that emulate the real telescope optomechanical conditions. The telescope control system, deployed on MELT can test control schemes with the active mounts emulating the real ELT optomechanical control interfaces.

The presented optomechanical setup uses the Active Segmented Mirror (ASM) with its piezo-driven 61 segments and a diameter of 15 cm. It was designed, built, and used on sky during the Active Phasing Experiment (APE).

Several beam paths after the telescope optical train on MELT are conditioned and guided to wavefront sensors and cameras, sensitive to wavelength bands in the visible and infrared to emulate wavefront commissioning and phasing tasks. This optical path resembles part of the phasing and diagnostics station (PDS) of the ELT, which is used to acquire the first star photons through the ELT and to learn the usage and control of all the ELT optomechanics. The PDS will be developed, designed, and built in-house at ESO. MELT helps its design by providing a detailed test setup for defining and deploying system engineering tasks, such as detailed functional analysis, definition of tasks to be carried out, and technical requirements, as well as operational commissioning aspects.

The bench test facility MELT will in the end help us to be as much as possible prepared when the telescope sends the first star light through the optical train to be able to tackle the unforeseeable problems and not be caught up with the foreseeable ones.

Proceedings Article | 6 July 2018 Paper

Designing and managing software interfaces for the ELT

Gianluca Chiozzi, Luigi Andolfato, Mario Kiekebusch, Nick Kornweibel, Marcus Schilling, Michele Zamparelli

Proceedings Volume 10707, 1070725 (2018) https://doi.org/10.1117/12.2312175

KEYWORDS: Control systems, Interfaces, Systems modeling, Safety, Databases, Data modeling, Telescopes, Mirrors, Process modeling

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Proceedings Article | 6 July 2018 Paper

Getting ready for serial production of the segmented 39-meter ELT primary: status, challenges and strategies

M. Dimmler, P. Barriga, M. Cayrel, F. Derie, A. Foerster, F. Gonte, J. C. Gonzalez, L. Jochum, N. Kornweibel, S. Leveque, C. Lucuix, L. Pettazzi

Proceedings Volume 10700, 1070043 (2018) https://doi.org/10.1117/12.2312073

KEYWORDS: Manufacturing, Prototyping, Sensors, Polishing, Mirrors, Control systems, Electronics, Actuators, Design for manufacturability

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Proceedings Article | 6 July 2018 Presentation + Paper

The ELT control system

Gianluca Chiozzi, Mario Kiekebusch, Nick Kornweibel, Ulrich Lampater, Marcus Schilling, Babak Sedghi, Heiko Sommer

Proceedings Volume 10707, 107070U (2018) https://doi.org/10.1117/12.2312164

KEYWORDS: Control systems, Telescopes, Safety, Adaptive optics, Computing systems, Standards development, Sensors, Mirrors, Actuators

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The Extremely Large Telescope (ELT) is a 39 meters optical telescope under construction at an altitude of about 3000m in the Chilean Atacama desert. The optical design is based on a novel five-mirror scheme and incorporates adaptive optics mirrors. The primary mirror consists of 798 segments, each 1.4 meters wide[1]. The control of this telescope and of the instruments that will be mounted on it is very challenging, because of its size, the number of sensors and actuators, the computing performance required for the phasing of the primary mirror, the adaptive optics and the correlation between all the elements in the optical path. In this paper we describe the control system architecture, emerging from scientific and technical requirements. We also describe how the procurement strategy (centered on industrial contracts at subsystem level) affects the definition of the architecture and the technological choices. We first introduce the global architecture of the system, with Local Control Systems and a Supervisory Control layer. The Local Control Systems is astronomy-agnostic and isolate the control of the subsystems procured through industrial contracts. The Supervisory Control layer is instead responsible for coordinating the operation of the different subsystems to realize the observation cases identified for the operation of the telescope. The control systems of the instruments interface with the telescope using a well-defined and standardized interface. To facilitate the work of the Consortia responsible for the construction of the instruments, we provide an Instrumentation Control Software Framework. This will ensure uniformity in the design of the control systems across instruments, making maintenance easier. This approach was successfully adopted for the instrumentation of the Very Large Telescope facility. We will analyze the process that was followed for defining the architecture from the requirements and use cases and to produce a design that addresses the technical challenges.

Proceedings Article | 8 August 2016 Paper

Prototyping the E-ELT M1 local control system communication infrastructure

J. Argomedo, N. Kornweibel, T. Grudzien, M. Dimmler, L. Andolfato, P. Barriga

Proceedings Volume 9913, 99131N (2016) https://doi.org/10.1117/12.2232817

KEYWORDS: Prototyping, Control systems, Telecommunications, Mirrors, Actuators, Control systems design, Sensors, Electronics, Telecommunications, Switches, Liquid crystals

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Proceedings Article | 27 July 2016 Paper

Improving E-ELT M1 prototype hard position actuators with active damping

B. Sedghi, M. Dimmler, M. Müller, N. Kornweibel

Proceedings Volume 9906, 99062W (2016) https://doi.org/10.1117/12.2232637

KEYWORDS: Mirrors, Sensors, Control systems, Actuators, Prototyping, Control systems, Photoacoustic tomography, Telescopes, Computer programming, Motion estimation, Image segmentation

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Proceedings Article | 22 July 2014 Paper

Improved E-ELT subsystem and component specifications, thanks to M1 test facility

M. Dimmler, J. Marrero, S. Leveque, Pablo Barriga, B. Sedghi, N. Kornweibel

Proceedings Volume 9145, 91451K (2014) https://doi.org/10.1117/12.2055142

KEYWORDS: Photoacoustic tomography, Control systems, Sensors, Interfaces, Prototyping, Actuators, Telescopes, Mirrors, Switches, Solar concentrators

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Proceedings Article | 22 July 2014 Paper

Fast optical re-phasing of segmented primary mirrors

Henri Bonnet, Michael Esselborn, Nick Kornweibel, Philippe Dierickx

Proceedings Volume 9145, 91451U (2014) https://doi.org/10.1117/12.2057457

KEYWORDS: Mirrors, Image registration, Sensors, Error analysis, Image segmentation, Phase measurement, Modulation, Wavefronts, Calibration, Point spread functions

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Proceedings Article | 22 July 2014 Paper

Status of E-ELT M5 scale-one demonstrator

Pablo Barriga, Babak Sedghi, Martin Dimmler, Nick Kornweibel

Proceedings Volume 9145, 91451O (2014) https://doi.org/10.1117/12.2056821

KEYWORDS: Actuators, Control systems, Mirrors, Standards development, Prototyping, Control systems design, Field programmable gate arrays, Telescopes, Position sensors, Telecommunications

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Proceedings Article | 29 July 2010 Paper

Status and new operation modes of the versatile VLT/NaCo

Julien H. Girard, Markus Kasper, Sascha Quanz, Matthew Kenworthy, Sridharan Rengaswamy, Rainer Schödel, Alexandre Gallenne, Stefan Gillessen, Nicolas Huerta, Pierre Kervella, Nick Kornweibel, Rainer Lenzen, Antoine Mérand, Guillaume Montagnier, Jared O'Neal, Gérard Zins

Proceedings Volume 7736, 77362N (2010) https://doi.org/10.1117/12.856799

KEYWORDS: Adaptive optics, Stars, Point spread functions, Imaging systems, K band, Speckle, Wavefront sensors, Exoplanets, Coronagraphy, Holography

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Proceedings Article | 15 July 2010 Paper

Sparse aperture masking (SAM) at NAOS/CONICA on the VLT

Peter Tuthill, Sylvestre Lacour, Paola Amico, Michael Ireland, Barnaby Norris, Paul Stewart, Tom Evans, Adam Kraus, Christopher Lidman, Emanuela Pompei, Nicholas Kornweibel

Proceedings Volume 7735, 77351O (2010) https://doi.org/10.1117/12.856806

KEYWORDS: Adaptive optics, Interferometry, Cameras, Stars, Telescopes, Polarimetry, Calibration, Signal to noise ratio, Polarization, Astronomy

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Proceedings Article | 16 July 2008 Paper

Tests of the PSF reconstruction algorithm for NACO/VLT

Yann Clénet, Christopher Lidman, Eric Gendron, Gérard Rousset, Thierry Fusco, Nick Kornweibel, Markus Kasper, Nancy Ageorges

Proceedings Volume 7015, 701529 (2008) https://doi.org/10.1117/12.789395

KEYWORDS: Point spread functions, Reconstruction algorithms, Adaptive optics, Calibration, Optical transfer functions, Algorithm development, Space telescopes, Stars, Telescopes, Device simulation

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Proceedings Article | 10 July 2008 Paper

Operation of Laser Guide Star Facility at La Silla Paranal Observatory

J. Alvarez, E. Bendek, J. Beltran, F. Gutierrez, I. Munoz, G. Valdes, N. Kornewibel

Proceedings Volume 7015, 70152O (2008) https://doi.org/10.1117/12.788454

KEYWORDS: Telescopes, Adaptive optics, Observatories, Laser systems engineering, Laser stabilization, Amplifiers, Stars, Imaging systems, Laser guide stars, Sodium

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Proceedings Article | 16 September 2004 Paper

Adapting the VLT data flow system for handling high-data rates

Stefano Zampieri, Michele Peron, Olivier Chuzel, Neil Ferguson, Jens Knudstrup, Nick Kornweibel

Proceedings Volume 5493, (2004) https://doi.org/10.1117/12.551221

KEYWORDS: Data archive systems, Databases, Data storage, Data modeling, Local area networks, Computing systems, Observatories, Distributed computing, Control systems, Telescopes

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Proceedings Article | 16 September 2004 Paper

The common pipeline library: standardizing pipeline processing

Derek McKay, Pascal Ballester, Klaus Banse, Carlo Izzo, Yves Jung, Michael Kiesgen, Nick Kornweibel, Lars Lundin, Andrea Modigliani, Ralf Palsa, Cyrus Sabet

Proceedings Volume 5493, (2004) https://doi.org/10.1117/12.551214

KEYWORDS: Algorithm development, Software development, Standards development, Calibration, Observatories, Astronomy, Data processing, Large telescopes, Imaging systems, Data archive systems

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Proceedings Article | 16 September 2004 Paper

Moor: web access to end-to-end data flow information at ESO

Alberto Chavan, Michele Peron, Judith Anwunah, Tim Canavan, Dario Dorigo, Nick Kornweibel, Fabio Sogni

Proceedings Volume 5493, (2004) https://doi.org/10.1117/12.551130

KEYWORDS: Databases, Observatories, Calibration, Data archive systems, Data storage, Navigation systems, Information operations, Telescopes, Astronomy, Lanthanum

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Proceedings Article | 2 January 2002 Paper

Evolution and adaptation of the VLT data flow system

Jens Knudstrup, Karim Haggouchi, Michele Peron, Peter Quinn, Pascal Ballester, Klaus Banse, Tim Canavan, Alberto Chavan, Nicolas Devillard, Dario Dorigo, Carlos Guirao, Carlo Izzo, Yves Jung, Nick Kornweibel, Cynthia Mavros, Gerhard Mekiffer, Andrea Modigliani, Ralf Palsa, Francesco Ricciardi, Cyrus Sabet, Fabio Sogni, Jakob Vinther, Andreas Wicenec, Bruce Wiseman, Stefano Zampieri

Proceedings Volume 4844, (2002) https://doi.org/10.1117/12.460665

KEYWORDS: Java, Observatories, Computer programming languages, Computer programming, Data archive systems, Virtual colonoscopy, Standards development, Databases, Telescopes, Control systems

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Showing 5 of 20 publications

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