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28 June 2006 The DARWIN breadboard optical delay line verification programme
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TNO, in cooperation with Micromega-Dynamics, SRON, Dutch Space and CSL, has designed a compact breadboard cryogenic delay line (figure 1) for use in future space interferometry missions. The breadboard (BB) delay line is representative of a flight mechanism. The delay line has a single stage voice coil actuator for Optical Path Difference (OPD) control, driving a two-mirror cat's eye. Magnetic bearings provide frictionless and wear free operation with zero-hysteresis. The development test programme, including operation at 100 K has been completed. The verification test programme is currently being carried out by Alcatel Alenia Space (in cooperation with Sageis-CSO) and will include functional testing at 40 K. A short design description and the intermediate results of the verification test programme are reported in this paper.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
T. C. van den Dool, F. Kamphues, W. Gielesen, J. Benoit, E. Laurenceau, A. Poupinet, F. Sève, Y. Stockman, K. Fleury, N. Loix, P. P. Kooijman, C. de Vries, H. J. van Weers, and G. Velsink "The DARWIN breadboard optical delay line verification programme", Proc. SPIE 6268, Advances in Stellar Interferometry, 62682O (28 June 2006);


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