20,000-hour reliability tests for the CLSS one watt linear cryocooler

Mark Squires; Robert D. Nelson

doi:10.1117/12.818563

7 May 2009 20,000-hour reliability tests for the CLSS one watt linear cryocooler

Mark Squires, Robert D. Nelson

Proceedings Volume 7298, Infrared Technology and Applications XXXV; 72981B (2009) https://doi.org/10.1117/12.818563
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

One of the most important characteristics of a cryocooler is its useful operating life. Cryocoolers intended for space environments require cryocoolers with very long lifetimes, as the opportunity for servicing a failed unit is minimal. Tactical cryocooler requirements have increasing followed the trend of the space cryocooler, with required lifetimes reaching tens of thousands of hours. Three tactical one watt linear (OWL) cryocoolers at Carleton Life Support Systems, Inc. (CLSS) of Davenport, IA, recently surpassed 20,000 hours of operation. Acceptance tests show that the performance of the cryocoolers has not significantly degraded over this timeframe. This paper reports the performance of the cryocoolers over the span of the test. Steady-state and cooldown performance at various ambient temperatures are reported.

Citation Download Citation

Mark Squires and Robert D. Nelson "20,000-hour reliability tests for the CLSS one watt linear cryocooler", Proc. SPIE 7298, Infrared Technology and Applications XXXV, 72981B (7 May 2009); https://doi.org/10.1117/12.818563

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