The manufacturing, assembly and acceptance testing of the breadboard Cryogenic Optical Delay Line for DARWIN
conference paper
TNO, in cooperation with Micromega-Dynamics, SRON, Dutch Space and CSL, has developed a compact breadboard cryogenic Optical Delay Line for use in future space interferometry missions. The work is performed under ESA contract in preparation for the DARWIN mission. The breadboard delay line is representative of a future flight mechanism, with all used materials and processes being flight representative. 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 are used for guiding. They provide frictionless and wear free operation with zero-hysteresis. The manufacturing, assembly and acceptance testing have been completed and are reported in this paper. The verification program, including functional testing at 40 K, will start in the final quarter of 2005.
Topics
TNO Identifier
238965
ISSN
0277786X
Article nr.
No.: 590415
Source title
Cryogenic Optical Systems and Instruments XI, 1-2 August 2005, San Diego, CA, USA
Editor(s)
Heaney J.B.
Burriesci L.G.
Burriesci L.G.
Pages
1-11