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GIVRE: A Protection Against Frost Deposit on Polar Instruments

Published online by Cambridge University Press:  23 May 2007

G. Durand
Affiliation:
Service d'Astrophysique/DAPNIA/DSM, CEA Saclay, 91191 Gif-sur-Yvette, France
L. Cadelis
Affiliation:
Service d'Astrophysique/DAPNIA/DSM, CEA Saclay, 91191 Gif-sur-Yvette, France
V. Minier
Affiliation:
Service d'Astrophysique/DAPNIA/DSM, CEA Saclay, 91191 Gif-sur-Yvette, France
C. Veyssière
Affiliation:
Service d'Ingénierie des Systèmes/DAPNIA/DSM, CEA Saclay, 91191 Gif-sur-Yvette, France
C. Walter
Affiliation:
Service d'Ingénierie des Systèmes/DAPNIA/DSM, CEA Saclay, 91191 Gif-sur-Yvette, France
A. Pierre
Affiliation:
Institut Paul Emile Victor/Technopole Brest-Iroise, BP. 75, 29280 Plouzané, France
A. Agabi
Affiliation:
Laboratoire Universitaire d'Astronomie de Nice/UNSA, Parc Valrose, 06108 Nice Cedex 2, France
E. Fossat
Affiliation:
Laboratoire Universitaire d'Astronomie de Nice/UNSA, Parc Valrose, 06108 Nice Cedex 2, France
F. Jeanneaux
Affiliation:
Laboratoire Universitaire d'Astronomie de Nice/UNSA, Parc Valrose, 06108 Nice Cedex 2, France
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Abstract

The CEA, in coordination with IPEV and LUAN, will prepare an experiment to study frost formation on surfaces in radiative cooling in the winter. This experiment has been shipped to be installed at Concordia before the 2007 winter period. It will be controlled from Concordia winterover personal, through PC server that will locally archive data from WEBcams and several local heat regulators. This experiment will be used to give recipes on the way to compensate with heaters the radiative cooling from the sky and maintain instrument surfaces at temperature just above icing conditions. The individual regulators proposed in this experiment will be usable as standalone ice protection systems for existing and future telescopes.

Type
Research Article
Copyright
© EAS, EDP Sciences, 2007

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