Mr. Bertrand Bauvir Profile

Bertrand Bauvir

Control Engineer at European Southern Observatory

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Author

Publications (18)

Proceedings Article | 10 November 2011 Paper

Dynamical simulation of E-ELT segmented primary mirror

B. Sedghi, M. Muller, B. Bauvir

Proceedings Volume 8336, 83360D (2011) https://doi.org/10.1117/12.915503

KEYWORDS: Actuators, Photoacoustic tomography, Mirrors, Sensors, Device simulation, Control systems, Telescopes, Motion models, MATLAB, Computer simulations

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Proceedings Article | 6 August 2010 Paper

Field stabilization (tip/tilt control) of E-ELT

B. Sedghi, M. Müller, H. Bonnet, M. Dimmler, B. Bauvir

Proceedings Volume 7733, 773340 (2010) https://doi.org/10.1117/12.856876

KEYWORDS: Wavefronts, Telescopes, Mirrors, Control systems, Interference (communication), Computer programming, Linear filtering, Wavefront sensors, Electronic filtering, Error analysis

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Proceedings Article | 5 August 2010 Paper

Dynamical aspects in control of E-ELT segmented primary mirror (M1)

B. Sedghi, M. Müller, M. Dimmler, B. Bauvir, T. Erm, H. Bonnet, M. Cayrel

Proceedings Volume 7733, 77332E (2010) https://doi.org/10.1117/12.856885

KEYWORDS: Actuators, Photoacoustic tomography, Sensors, Adaptive optics, Telescopes, Segmented mirrors, Control systems, Wavefronts, Mirrors, Feedback loops

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Proceedings Article | 28 July 2008 Paper

Fringe tracking at VLTI: status report

Jean-Baptiste Le Bouquin, Roberto Abuter, Bertrand Bauvir, Henri Bonnet, Pierre Haguenauer, Nicola di Lieto, Serge Menardi, Sébastien Morel, Fredrik Rantakyrö, Markus Schoeller, Anders Wallander, Stefan Wehner

Proceedings Volume 7013, 701318 (2008) https://doi.org/10.1117/12.788414

KEYWORDS: Signal to noise ratio, Visibility, Telescopes, Reconstruction algorithms, Interferometry, Stars, Modulation, Calibration, Observatories, Astronomy

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Proceedings Article | 28 July 2008 Paper

The Very Large Telescope Interferometer: an update

Pierre Haguenauer, Roberto Abuter, Jaime Alonso, Javier Argomedo, Bertrand Bauvir, Guillaume Blanchard, Henri Bonnet, Stéphane Brillant, Michael Cantzler, Frédéric Derie, Françoise Delplancke, Nicola Di Lieto, Christophe Dupuy, Yves Durand, Philippe Gitton, Bruno Gilli, Andreas Glindemann, Serge Guniat, Stéphane Guisard, Nicolas Haddad, Gerhard Hudepohl, Christian Hummel, Nathaniel Jesuran, Andreas Kaufer, Bertrand Koehler, Jean-Baptiste Le Bouquin, Samuel Lévêque, Christopher Lidman, Pedro Mardones, Serge Ménardi, Sébastien Morel, Isabelle Percheron, Monika Petr-Gotzens, Than Phan Duc, Florence Puech, Andres Ramirez, Fredrik Rantakyrö, Andrea Richichi, Thomas Rivinius, Johannes Sahlmann, Stefan Sandrock, Markus Schöller, Nicolas Schuhler, Fabio Somboli, Stanislav Stefl, Mario Tapia, Gerard Van Belle, Anders Wallander, Stefan Wehner, Markus Wittkowski

Proceedings Volume 7013, 70130C (2008) https://doi.org/10.1117/12.788209

KEYWORDS: Telescopes, Astatine, Adaptive optics, Mirrors, Interferometers, Large telescopes, Interferometry, IRIS Consortium, Sensors, Observatories

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Proceedings Article | 17 July 2008 Paper

E-ELT primary mirror control system

M. Dimmler, T. Erm, B. Bauvir, B. Sedghi, H. Bonnet, M. Müller, A. Wallander

Proceedings Volume 7012, 70121O (2008) https://doi.org/10.1117/12.790476

KEYWORDS: Mirrors, Control systems, Photoacoustic tomography, Adaptive optics, Sensors, Spatial frequencies, Telescopes, Actuators, Wavefronts, Curium

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Proceedings Article | 10 July 2008 Paper

Acceleration feedback control on an AT

B. Sedghi, B. Bauvir, M. Dimmler

Proceedings Volume 7012, 70121Q (2008) https://doi.org/10.1117/12.789333

KEYWORDS: Data modeling, Telescopes, Gallium, Data centers, Velocity measurements, Feedback control, Linear filtering, Calcium, Francium, Observatories

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Proceedings Article | 9 July 2008 Paper

Exploring model based engineering for large telescopes: getting started with descriptive models

R. Karban, M. Zamparelli, B. Bauvir, B. Koehler, L. Noethe, A. Balestra

Proceedings Volume 7017, 70171I (2008) https://doi.org/10.1117/12.788739

KEYWORDS: Systems modeling, Control systems, Telescopes, Systems engineering, Safety, Performance modeling, Sensors, Reverse modeling, Large telescopes, Mirrors

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Proceedings Article | 27 June 2006 Paper

Recent progress at the Very Large Telescope Interferometer

Markus Schöller, Javier Argomedo, Bertrand Bauvir, Leonardo Blanco-Lopez, Henri Bonnet, Stephane Brillant, Michael Cantzler, Johan Carstens, Fabio Caruso, Christian Choque-Cortez, Frederic Derie, Francoise Delplancke, Nicola Di Lieto, Martin Dimmler, Yves Durand, Mark Ferrari, Emmanuel Galliano, Philippe Gitton, Bruno Gilli, Andreas Glindemann, Serge Guniat, Stephane Guisard, Nicolas Haddad, Pierre Haguenauer, Nico Housen, Gerd Hudepohl, Christian Hummel, Andreas Kaufer, Mario Kiekebusch, Bertrand Koehler, Jean-Baptiste Le Bouquin, Samuel Leveque, Christopher Lidman, Pedro Mardones, Serge Menardi, Sebastien Morel, Manfred Mornhinweg, Jean-Luc Nicoud, Isabelle Percheron, Monika Petr-Gotzens, Than Phan Duc, Florence Puech, Andres Ramirez, Fredrik Rantakyrö, Andrea Richichi, Thomas Rivinius, Stefan Sandrock, Fabio Somboli, Jason Spyromilio, Stanislav Stefl, Vincent Suc, Roberto Tamai, Mario Tapia, Martin Vannier, Gautam Vasisht, Anders Wallander, Stefan Wehner, Markus Wittkowski, Juan Zagal

Proceedings Volume 6268, 62680L (2006) https://doi.org/10.1117/12.672231

KEYWORDS: Telescopes, Astatine, Interferometers, IRIS Consortium, Large telescopes, Interferometry, Mirrors, Optical fibers, Spectral resolution, Data archive systems

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Proceedings Article | 20 October 2004 Paper

VLTI technical advances: present and future

Andreas Glindemann, Maja Albertsen, Luigi Andolfato, Gerardo Avila, Pascal Ballester, Bertrand Bauvir, Francoise Delplancke, Frederic Derie, Martin Dimmler, Philippe Duhoux, Emmanuel di Folco, R. Frahm, Emmanuel Galliano, Bruno Gilli, Paul Giordano, Philippe Gitton, Stephane Guisard, Nico Housen, Christian Hummel, Alexis Huxley, Robert Karban, Pierre Kervella, Mario Kiekebusch, Bertrand Koehler, Samuel Leveque, Tom Licha, Antonio Longinotti, Derek McKay, Serge Menardi, Guy Monnet, Sebastien Morel, Francesco Paresce, Isabelle Percheron, Monika Petr-Gotzens, Thanh Phan Duc, Joerg-Uwe Pott, Florence Puech, Fredrik Rantakyro, Andrea Richichi, Cyrus Sabet, Kevin Scales, Markus Schoeller, N. Schuhler, Mario van den Ancker, Martin Vannier, Anders Wallander, Markus Wittkowski, Rainer Wilhelm

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551468

KEYWORDS: Telescopes, Stars, Interferometry, Sensors, Adaptive optics, Astatine, Observatories, Near infrared, Mid-IR, IRIS Consortium

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Proceedings Article | 20 October 2004 Paper

Preparing MIDI science operation at VLTI

Sebastien Morel, Pascal Ballester, Bertrand Bauvir, Peter Biereichel, Jean-Gabriel Cuby, Emmanuel Galliano, Nicholas Haddad, Nico Housen, Christian Hummel, Andreas Kaufer, Pierre Kervella, Isabelle Percheron, Florence Puech, Fredrik Rantakyro, Andrea Richichi, Cyrus Sabet, Markus Schoeller, Jason Spyromilio, Martin Vannier, Anders Wallander, Markus Wittkowski, Christoph Leinert, Uwe Graser, Udo Neumann, Walter Jaffe, Jeroen de Jong

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.550116

KEYWORDS: Telescopes, Interferometry, Visibility, Observatories, Calibration, Interferometers, Sensors, Electronics, Photometry, Mirrors

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Proceedings Article | 20 October 2004 Paper

The VLTI fringe sensors: FINITO and PRIMA FSU

Mario Gai, Serge Menardi, Stefano Cesare, Bertrand Bauvir, Donata Bonino, Leonardo Corcione, Martin Dimmler, Giuseppe Massone, Francois Reynaud, Anders Wallander

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551495

KEYWORDS: Sensors, Telescopes, Calibration, Modulation, Interferometry, Visibility, Stars, Adaptive optics, Metrology, Interferometers

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Proceedings Article | 15 September 2004 Paper

Designing a common real-time controller for VLT applications

Bertrand Bauvir, Anders Wallander, Philippe Duhoux, Alexis Huxley, Robert Karban

Proceedings Volume 5496, (2004) https://doi.org/10.1117/12.551988

KEYWORDS: Control systems, Telescopes, Standards development, Sensors, Software development, Intelligence systems, Operating systems, Astronomy, Algorithm development, Beam splitters

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Proceedings Article | 15 September 2004 Paper

Time to go H-∞

Toomas Erm, Zdenek Hurak, Bertrand Bauvir

Proceedings Volume 5496, (2004) https://doi.org/10.1117/12.555606

KEYWORDS: Mathematical modeling, Telescopes, Control systems, Signal attenuation, Amplifiers, MATLAB, Servomechanisms, Astronomy, Observatories, Structural design

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Proceedings Article | 15 September 2004 Paper

A status update of the VLTI control system

Anders Wallander, Bertrand Bauvir, Martin Dimmler, Rob Donaldson, Enrico Fedrigo, Bruno Gilli, Nico Housen, Alexis Huxley, Thanh Phan Duc

Proceedings Volume 5496, (2004) https://doi.org/10.1117/12.550923

KEYWORDS: Control systems, Telescopes, Adaptive optics, Sensors, Interferometry, Interferometers, Signal detection, Signal to noise ratio, Computing systems, Modulation

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Proceedings Article | 21 February 2003 Paper

Commissioning the VLT interferometer: from first fringes towards a general user facility

Markus Schoeller, Philippe Gitton, Javier Argomedo, Pascal Ballester, Bertrand Bauvir, Roy Van Boekel, Michael Cantzler, Serge Correia, William Cotton, Francoise Delplancke, Frederic Derie, Philippe Duhoux, Toomas Erm, Emmanuel di Folco, Vincent Coude du Foresto, Alberto Gennai, Bruno Gilli, Paul Giordano, Andreas Glindemann, Stephane Guisard, Pablo Gutierrez, Nico Housen, Gerhard Huedepohl, Alexis Huxley, S. Jackisch, Walter Jaffe, Pierre Kervella, Arno van Kesteren, Mario Kiekebusch, Bertrand Koehler, Samuel Leveque, Antonio Longinotti, Serge Menardi, Sebastien Morel, Lothar Noethe, Francesco Paresce, Isabelle Percheron, T. Phan Duc, A. Pino, D. Rabeling, A. Ramirez, Sylvie Robbe-Dubois, Andrea Richichi, A. Rijo, Cyrus Sabet, Stefan Sandrock, Damien Segransan, Jason Spyromilio, Roberto Tamai, Massimo Tarenghi, Anders Wallander, Rainer Wilhelm, Markus Wittkowski

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459678

KEYWORDS: Interferometers, Interferometry, Astronomical imaging, Astronomy, Telescopes

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Proceedings Article | 21 February 2003 Paper

The VLTI: a status report

Andreas Glindemann, J. Algomedo, Rodrigo Amestica, Pascal Ballester, Bertrand Bauvir, E. Bugueno, Serge Correia, Francisco Delgado, Francoise Delplancke, Frederic Derie, Philippe Duhoux, Emmanuel di Folco, Alberto Gennai, Bruno Gilli, Paul Giordano, Philippe Gitton, Stephane Guisard, Nico Housen, Alexis Huxley, Pierre Kervella, Mario Kiekebusch, Bertrand Koehler, Samuel Leveque, Antonio Longinotti, Sebastien Morel, Francesco Paresce, Than Duc, Andrea Richichi, Markus Schoeller, Massimo Tarenghi, Anders Wallander, Markus Wittkowski, Rainer Wilhelm, S. Menardi

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.458117

KEYWORDS: Stars, Telescopes, Interferometry, Sensors, Astatine, Adaptive optics, Observatories, Interferometers, K band, Mirrors

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Proceedings Article | 13 December 2002 Paper

Status of VLTI control system: how to make an optical interferometer a data-producing facility

Anders Wallander, Javier Argomedo, Pascal Ballester, Bertrand Bauvir, Mauro Comin, Rob Donaldson, Philippe Duhoux, Alberto Gennai, Bruno Gilli, Nico Housen, Alexis Huxley, Robert Karban, Mario Kiekebush, Antonio Longinotti, Ivan Munoz, Than Phan Duc

Proceedings Volume 4848, (2002) https://doi.org/10.1117/12.460963

KEYWORDS: Telescopes, Control systems, Sensors, Digital signal processing, Standards development, Data modeling, Interferometers, Interferometry, Observatories, Astronomical telescopes

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After having established routine science operations for four 8 m single dish telescopes and their first set of instruments at the Paranal Observatory, the next big engineering challenge for ESO has been the VLT Interferometer. Following an intense integration period at Paranal, first fringes were obtained in the course of last year, first with two smaller test siderostats and later with two 8 m VLT telescopes. Even though optical interferometry today may be considered more experimental than single telescope astronomy, we have aimed at developing a system with the same requirements on reliability and operability as for a single VLT telescope. The VLTI control system is responsible for controlling and co-ordinating all devices making up VLTI, where a telescope is just one out of many subsystems. Thus the pure size of the complete system increases the complexity and likelihood of failure. Secondly, some of the new subsystems introduced, in particular the delay lines and the associated fringe-tracking loop, have more demanding requirements in terms of control loop bandwidth, computing power and communication. We have developed an innovative generic multiprocessor controller within the VLT framework to address these requirements. Finally, we have decided to use the VLT science operation model, whereby the observation is driven by observation blocks with minimum human real-time interaction, which implies that VLTI is seen as one machine and not as a set of telescopes and other subsystems by the astronomical instrument. In this paper we describe the as-built architecture of the VLTI control and data flow system, emphasising how new techniques have been incorporated, while at the same time the investments in technology and know-how obtained during the VLT years have been protected. The result has been a faster development cycle, a robustness approaching that of VLT single dish telescopes and a "look and feel" identical to all other ESO observing facilities. We present operation, performance and development cost data to confirm this. Finally we discuss the plans for the coming years, when more and more subsystems will be added in order to explore the full potential of the VLTI.

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