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Proceedings Paper

Reliability for tactical cryocoolers
Author(s): Henry L. Hoefelmeyer; Randy Nelson; Robert Nelson
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Paper Abstract

For the past 18 years Carleton Life Support Systems has produced over 15,000 tactical cryogenic coolers that are primarily used in military infrared systems with excellent demonstrated reliability. As system reliability has improved, the cooler performance has emerged as a dominant component for reliability predictions. This has driven cooler reliability requirements to increase from a 1500-hour rotary cooler in chiefly ground applications to current requirements of 20,000 hours for linear coolers in advanced airborne applications. At the same time there is a push for improved cooldown time, lower power, lighter weight and smaller package. This paper reviews our progress on extending cooler life. It reviews recent product returns and contends that the majority of issues are not primarily related to reliability. It also reviews how system performance specifications are restrictive to the cooler designer in achieving higher reliability in tactical coolers.

Paper Details

Date Published: 30 August 2004
PDF: 5 pages
Proc. SPIE 5406, Infrared Technology and Applications XXX, (30 August 2004); doi: 10.1117/12.543533
Show Author Affiliations
Henry L. Hoefelmeyer, Carleton Life Support Systems Inc. (United States)
Randy Nelson, Carleton Life Support Systems Inc. (United States)
Robert Nelson, Carleton Life Support Systems Inc. (United States)

Published in SPIE Proceedings Vol. 5406:
Infrared Technology and Applications XXX
Bjorn F. Andresen; Gabor F. Fulop, Editor(s)

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