Essais sur la durée de vie du cryorefroidisseur ABI : deux années complètes d'essais.

Life testing of the ABI cryocooler: Two years complete.

Auteurs : RAMSEY P. G., SWANSON K. S.

Type d'article : Article


The Advanced Baseline Imager (ABI) is a prime payload for the GOES-R (Geostationary Operational Environmental Spacecraft) series of meteorological satellites. Focal plane temperature control is provided by a two-stage cryocooler based on the NGAS HEC (Northrop Grumman Aerospace Systems High Efficiency Cryocooler) design. To demonstrate the long-term operation of this cooler, a dedicated life test is being performed. The life test cooler is close to the flight design, differing only in minor details of the cold head structure. The test concept simulates continuous operation the cooler at flight like conditions. Long term testing started on 12 June 2009, and has continued to this date. Test performance and anomalies are discussed. [Reprinted with permission from Elsevier. Copyright, 2012].



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