Development of a 2.0W at 60K single-stage coaxial pulse tube cryocooler for long-wave infrared focal plane array applications

H. Z. Dang; L. B. Wang; Y. N. Wu; K. X. Yang; S. S. Li; W. B. Shen

doi:10.1117/12.850104

3 May 2010 Development of a 2.0W at 60K single-stage coaxial pulse tube cryocooler for long-wave infrared focal plane array applications

H. Z. Dang, L. B. Wang, Y. N. Wu, K. X. Yang, S. S. Li, W. B. Shen

Author Affiliations +

Proceedings Volume 7660, Infrared Technology and Applications XXXVI; 76602S (2010) https://doi.org/10.1117/12.850104
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

A 2.0W@60K single-stage coaxial pulse tube cryocooler has been developed to provide reliable low-vibration cooling for the space-borne long wave infrared focal plane array. The coaxial configuration result in a compact system and the inertance tube together with a gas reservoir serves as the only phase-shifting to realize a highly reliable system. The inertance tube consists of two parts with different inner diameter and length to obtain the desirable phase relationship. Both cold tip and warm flange integrated with fine slit heat exchanges fabricated with electro discharge machining technology to enhance heat exchange performance. A split Oxford-type linear compressor with dual-opposed piston configuration is connected to the cold finger with a 30 cm flexible metallic tube. The overall weight without control electronics is below 8 kg. The preliminary experiments show that a no-load temperature of 46 K and a cooling power of 2 W at 60 K with 104 W of input power at 300K reject temperature have been achieved.

Citation Download Citation

H. Z. Dang, L. B. Wang, Y. N. Wu, K. X. Yang, S. S. Li, and W. B. Shen "Development of a 2.0W at 60K single-stage coaxial pulse tube cryocooler for long-wave infrared focal plane array applications", Proc. SPIE 7660, Infrared Technology and Applications XXXVI, 76602S (3 May 2010); https://doi.org/10.1117/12.850104

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