Reference : Cryo-optical testing of large aspheric reflectors operating in the sub mm range
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Aerospace & aeronautics engineering
http://hdl.handle.net/2268/79728
Cryo-optical testing of large aspheric reflectors operating in the sub mm range
English
Roose, Stéphane mailto [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
Houbrechts, Yvette mailto [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
Mazzoli, Alexandra mailto [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
Ninane, Nathalie mailto [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
Stockman, Yvan mailto [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
Daddato, Robert [ESA > ESTEC > > >]
Venancio, Luis [ESA > ESTEC > > >]
Kirschner, Volker [ESA > ESTEC > > >]
De Chambure, Daniel [ESA > ESTEC > > >]
Aug-2005
Proceedings of the 2nd SPIE symposium on Advanced Optical Manufacturing and Testing Technologies
Zhang, Y.
Jiang, W.
Cho, M.
SPIE
Prc. SPIE 6148
No
No
International
9780819461872
Bellingham
USA
2nd SPIE symposium on Advanced Optical Manufacturing and Testing Technologies
August 2005
SPIE
Xian
China
[en] Interferometry ; Cryogenic test ; CFRP
[en] The cryo-optical testing of the PLANCK primary reflector (elliptical off-axis CFRP reflector of 1550 mm x 1890 mm) is one of the major issue in the payload development program. It is requested to measure the changes of the Surface Figure Error (SFE) with respect to the best ellipsoid, between 293 K and 50 K, with a 1 μm RMS accuracy. To achieve this, Infra Red interferometry has been used and a dedicated thermo mechanical set-up has been constructed. This paper summarises the test activities, the test methods and results on the PLANCK Primary Reflector - Flight Model (PRFM) achieved in FOCAL 6.5 at Centre Spatial de Liege (CSL). Here, the Wave Front Error (WFE) will be considered, the SFE can be derived from the WFE measurement. After a brief introduction, the first part deals with the general test description. The thermo-elastic deformations will be addressed: the surface deformation in the medium frequency range (spatial wavelength down to 60 mm) and core-cell dimpling.
Researchers
http://hdl.handle.net/2268/79728
10.1117/12.674086

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