Cryocooler MTTF prediction at high operating temperature

James Zhan

doi:10.1117/12.3016847

7 June 2024 Cryocooler MTTF prediction at high operating temperature

James Zhan

Proceedings Volume 13046, Infrared Technology and Applications L; 130461R (2024) https://doi.org/10.1117/12.3016847
Event: SPIE Defense + Commercial Sensing, 2024, National Harbor, Maryland, United States

Abstract

Due to its relatively short history, high operating temperature (HOT) cooled IDDCA’s MTTF value testing results are difficult to obtain and hard to predict or estimate. However, many cryocooler manufacturers in the market already have and can provide cyrocooler’s MTTF testing data at 77K or 80K operating temperatures. We conducted tests of IDDCA at various high operating temperature settings and measured coolers running speeds. We then applied calculation methods to calculate and predict its MTTF based on 77K test results and measured cooler rotational speeds at different operating temperatures and cooler settings. We conduct integration of cryocoolers with detectors and dewars and have found such predictions can be used as good reference for cooler MTTF predictions at a particular high operating temperature.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

James Zhan "Cryocooler MTTF prediction at high operating temperature", Proc. SPIE 13046, Infrared Technology and Applications L, 130461R (7 June 2024); https://doi.org/10.1117/12.3016847

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