The DARWIN breadboard optical delay line verification programme
conference paper
TNO, in co-operation 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 zerohysteresis. 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 co-operation 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.
Topics
TNO Identifier
239537
ISSN
0277786X
ISBN
9780819463333
Article nr.
No.: 62682O
Source title
Advances in Stellar Interferometry, 25-30 May 2006, Orlando, FL, USA
Collation
12 p.