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Proceedings Paper

Active vibration filtering: application to an optical delay line for stellar interferometer
Author(s): Bertrand Koehler; Philippe M. Bourlon; Michel Dugue
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Paper Abstract

In December 1989, the first optical delay line was delivered to France's Observatorie de la Cote d'Azur (OCA) for the I2T stellar interferometer. In order to meet the very stringent stability requirement imposed on the delay line during its programmed translation, a servocontrolled stage for active vibration filtering has been developed and successfully tested. This paper first describes the requirements specific to this application. The need for active vibration filtering is then demonstrated, considering the state-of-the-art in translation stage technologies. After a brief description of the servocontrolled filtering stage and the overall interferometer's control architecture, the results obtained are presented. In the last section, we discuss the potential future applications of the developed concept.

Paper Details

Date Published: 1 October 1991
PDF: 12 pages
Proc. SPIE 1489, Structures Sensing and Control, (1 October 1991); doi: 10.1117/12.46598
Show Author Affiliations
Bertrand Koehler, Aerospatiale (France)
Philippe M. Bourlon, Observatoire de la Cote d'Azur (France)
Michel Dugue, Observatoire de la Cote d'Azur (France)

Published in SPIE Proceedings Vol. 1489:
Structures Sensing and Control
John Breakwell; Vijay K. Varadan, Editor(s)

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