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Proceedings Paper

E-ELT M1 test facility
Author(s): M. Dimmler; J. Marrero; S. Leveque; P. Barriga; B. Sedghi; M. Mueller
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Paper Abstract

During the advanced design phase of the European Extremely Large Telescope (E-ELT) several critical components have been prototyped. During the last year some of them have been tested in dedicated test stands. In particular, a representative section of the E-ELT primary mirror has been assembled with 2 active and 2 passive segments. This test stand is equipped with complete prototype segment subunits, i.e. including support mechanisms, glass segments, edge sensors, position actuators as well as additional metrology for monitoring. The purpose is to test various procedures such as calibration, alignment and handling and to study control strategies. In addition the achievable component and subsystem performances are evaluated, and interface issues are identified. In this paper an overview of the activities related to the E-ELT M1 Test Facility will be given. Experiences and test results are presented.

Paper Details

Date Published: 17 September 2012
PDF: 15 pages
Proc. SPIE 8444, Ground-based and Airborne Telescopes IV, 84441Y (17 September 2012); doi: 10.1117/12.926146
Show Author Affiliations
M. Dimmler, European Southern Observatory (Germany)
J. Marrero, European Southern Observatory (Germany)
S. Leveque, European Southern Observatory (Germany)
P. Barriga, European Southern Observatory (Germany)
B. Sedghi, European Southern Observatory (Germany)
M. Mueller, European Southern Observatory (Germany)


Published in SPIE Proceedings Vol. 8444:
Ground-based and Airborne Telescopes IV
Larry M. Stepp; Roberto Gilmozzi; Helen J. Hall, Editor(s)

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