Share Email Print

Proceedings Paper

Definition of the active cooling system for the space instrument ÇIVA/Mars
Author(s): Sujit Lamartinie; Jean-Pierre Bibring; Alain Soufflot
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

CIVA/Mars is a space miniaturized spectral imaging microscope. It is designed to in-situ analyze samples on Mars surface. It requires the use of a double cooling system : a passive cooling for the global instrument which will be maintained at a temperature higher than 160 K and an active cooling system for the IR MCT detector matrix which must be maintained at a temperature lower than 140 K. Taking into account the mission constraints, a trade-off analysis of available active cooling systems led to the choice of a thermoelectrical cooler (TEC). Space validation tests of standard multi-stage TECs were performed. Performances did not meet the technical specifications of the instrument. Two types of customized TEC modules were then designed and manufactured : mechanical prototypes from RMT Ltd. and optimized modules from Marlow Ind. A first RMT prototype passed the vibration & shock qualification tests and a second passed the low temperatures vacuum qualification tests with few margins. A Marlow optimized module passed the low temperatures vacuum qualification tests; its characteristics and performances make it compatible with CIVA/Mars. In this paper, the instrument mission and characteristics are first presented. Then TEC design studies are discussed. Finally, optimized TEC space qualification tests are detailed, and the performances analyzed.

Paper Details

Date Published: 5 March 2003
PDF: 11 pages
Proc. SPIE 4850, IR Space Telescopes and Instruments, (5 March 2003); doi: 10.1117/12.461521
Show Author Affiliations
Sujit Lamartinie, Institut d'Astrophysique Spatiale (France)
Jean-Pierre Bibring, Institut d'Astrophysique Spatiale (France)
Alain Soufflot, Institut d'Astrophysique Spatiale (France)

Published in SPIE Proceedings Vol. 4850:
IR Space Telescopes and Instruments
John C. Mather, Editor(s)

© SPIE. Terms of Use
Back to Top