Cryocoolers for infrared missile warning systems

Avishai Filis; Nachman Pundak; Yoav Zur; Ramon Broyde; Moshe Barak

doi:10.1117/12.850006

3 May 2010 Cryocoolers for infrared missile warning systems

Avishai Filis, Nachman Pundak, Yoav Zur, Ramon Broyde, Moshe Barak

Proceedings Volume 7660, Infrared Technology and Applications XXXVI; 76602L (2010) https://doi.org/10.1117/12.850006
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

The growth in world demand for infrared missile warning systems (MWS) has impelled the development of new technologies, in particular, special cryogenic coolers. Since the cryocooler is a core component in MWS RICOR has met the challenge by developing new models able to withstand high ambient temperatures above 110°C as well as harsh vibration levels, both derived from airborne fighter applications. The development focused on a cryocooler regenerator and cold finger optimization in order to achieve high cooling capacity and a thermodynamic efficiency of about 4.4% at 95°C ambient for one of the cooler models. In order to withstand harsh environmental vibration, the cold finger and outer Dewar structure have been significantly ruggedized; efficient heat sinking methods have been applied and also novel vibration isolation methods have been implemented. The electronic design concept is based on an analog controller, the PCB of which has been designed with internal heat sinking paths and special components being able to withstand ambients temperatures up to 125°C. As a final stage of development, such cryocoolers were successfully qualified by RICOR and system manufacture in harsh environmental conditions and life demonstration tests were performed.

Citation Download Citation

Avishai Filis, Nachman Pundak, Yoav Zur, Ramon Broyde, and Moshe Barak "Cryocoolers for infrared missile warning systems", Proc. SPIE 7660, Infrared Technology and Applications XXXVI, 76602L (3 May 2010); https://doi.org/10.1117/12.850006

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