Paper
3 May 2010 Performance and reliability enhancement of linear coolers
M. Mai, I. Rühlich, A. Schreiter, S. Zehner
Author Affiliations +
Abstract
Highest efficiency states a crucial requirement for modern tactical IR cryocooling systems. For enhancement of overall efficiency, AIM cryocooler designs where reassessed considering all relevant loss mechanisms and associated components. Performed investigation was based on state-of-the-art simulation software featuring magnet circuitry analysis as well as computational fluid dynamics (CFD) to realistically replicate thermodynamic interactions. As a result, an improved design for AIM linear coolers could be derived. This paper gives an overview on performance enhancement activities and major results. An additional key-requirement for cryocoolers is reliability. In recent time, AIM has introduced linear coolers with full Flexure Bearing suspension on both ends of the driving mechanism incorporating Moving Magnet piston drive. In conjunction with a Pulse-Tube coldfinger these coolers are capable of meeting MTTF's (Mean Time To Failure) in excess of 50,000 hours offering superior reliability for space applications. Ongoing development also focuses on reliability enhancement, deriving space technology into tactical solutions combining both, excelling specific performance with space like reliability. Concerned publication will summarize the progress of this reliability program and give further prospect.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. Mai, I. Rühlich, A. Schreiter, and S. Zehner "Performance and reliability enhancement of linear coolers", Proc. SPIE 7660, Infrared Technology and Applications XXXVI, 76602N (3 May 2010); https://doi.org/10.1117/12.855207
Lens.org Logo
CITATIONS
Cited by 2 scholarly publications.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Reliability

Cryocoolers

Magnetism

Adhesives

Contamination

Thermodynamics

Infrared detectors

RELATED CONTENT

Development trends in IR detector coolers
Proceedings of SPIE (May 11 2009)
Cryocooler technology
Proceedings of SPIE (October 17 1994)
Strix 1 4 W Split Stirling Cooler Reliability...
Proceedings of SPIE (November 10 1987)

Back to Top