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TNO Industrie en Techniek (author), Vosteen, L.L.A. (author), Draaisma, F. (author), Werkhoven, W.P. (author), Riel, L.J.M. (author), Mol, M.H. (author), Den, O.G. (author)TNO developed a Wave Front Sensor (WFS) instrument for the GAIA mission. This Wave Front Sensor will be used to monitor the wave front errors of the two main telescopes mounted on the GAIA satellite, which may be corrected by a 5- degree of freedom (DOF) mechanism during operation. The GAIA-WFS will operate over a broad wavelength (450 to 900 nm...conference paper 2009
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TNO Industrie en Techniek (author), Meijer, E.A. (author), Nijenhuis, J.N. (author), Vink, R.J.P. (author), Kamphues, F.G. (author), Gielesen, W.L.M. (author), Coatantiec, C. (author)To measure the relative motions of GAIA's telescopes, the angle between the telescopes is monitored by an all Silicon Carbide Basic Angle Monitoring subsystem (BAM OMA). TNO is developing this metrology system. The stability requirements for this metrology system go into the pico meter and pico radian range. Such accuracies require extreme...conference paper 2009
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TNO Industrie en Techniek (author), van den Dool, T.C. (author), Kamphues, F.G. (author), Gielesen, W.L.M. (author), Dorrepaal, M. (author), Doelman, N.J. (author), Loix, N. (author), Verschueren, J.P. (author), Kooijman, P.P. (author), Visser, M. (author), Velsink, G. (author), Fleury, K. (author)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...conference paper 2005