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Proceedings Paper

High-precision optical metrology for Darwin: design and performance
Author(s): Bertrand Calvel; Isabel Cabeza; Alexandre Cabral; Eberhard Manske; José Rebordão; Rainer Sesselmann; Zoran Sodnik; Ad Verlaan
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Paper Abstract

The ESA DARWIN project uses a set of telescopes based on free flying satellites and operated as an aperture synthesis system. The relative position of all these satellites has to be maintained with a very high accuracy. This is only possible with the help of a very high precision metrology system. We present here in a first part the requirements for the optical metrology of DARWIN and the proposed definition of the metrology systems needed to answer these requirements. In the second part we present the design of the various systems. Eventually we give the results of the performance tests of breadboards that have been manufactured in the framework of the ESA study "High Precision Optical Metrology" to validate these designs.

Paper Details

Date Published: 13 April 2018
PDF: 8 pages
Proc. SPIE 10568, International Conference on Space Optics — ICSO 2004, 105682N (13 April 2018); doi: 10.1117/12.2500126
Show Author Affiliations
Bertrand Calvel, EADS Astrium (France)
Isabel Cabeza, EADS CASA Espacio (Spain)
Alexandre Cabral, INETI-LAER (Portugal)
Eberhard Manske, Technische Univ. Ilmenau (Germany)
José Rebordão, INETI-LAER (Portugal)
Rainer Sesselmann, EADS Astrium (Germany)
Zoran Sodnik, European Space Research and Technology Ctr. (Netherlands)
Ad Verlaan, TNO (Netherlands)

Published in SPIE Proceedings Vol. 10568:
International Conference on Space Optics — ICSO 2004
Josiane Costeraste; Errico Armandillo, Editor(s)

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