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Proceedings Paper

High-precision optical metrology system for the SMART-2 mission as precursor for the DARWIN satellite constellation
Author(s): Christoph Haupt; Klaus H. Kudielka; Edgar Fischer; Ulrich Johann
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Paper Abstract

The presented paper reports on a conceptual design of a High Precision Optical Metrology (HPOM) system for SMART-2 with the emphasis of establishing and controlling the distance between the satellites. SMART-2 serves as a pre-cursor technology mission for DARWIN where critical technologies will be demonstrated. An overview about the DARWIN and SMART-2 mission and requirements is given. The HPOM system must take over from the Radio Frequency (RF) system at an inferometer arm difference of some cm and must establish and control an arm difference of smaller than 5nm at a 3dB bandwidth of 100Hz. A cascaded metrology system has been developed using different optical metrology methods such as time of flight, dual-wavelength and white light interferometry within one system to meet the ambitious requirement.

Paper Details

Date Published: 20 June 2002
PDF: 16 pages
Proc. SPIE 4777, Interferometry XI: Techniques and Analysis, (20 June 2002); doi: 10.1117/12.472214
Show Author Affiliations
Christoph Haupt, Contraves Space AG (Switzerland)
Klaus H. Kudielka, Contraves Space AG (Switzerland)
Edgar Fischer, Contraves Space AG (Switzerland)
Ulrich Johann, Astrium GmbH (Germany)

Published in SPIE Proceedings Vol. 4777:
Interferometry XI: Techniques and Analysis
Katherine Creath; Joanna Schmit, Editor(s)

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