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Proceedings Paper

Cryocoolers for infrared missile warning systems
Author(s): Avishai Filis; Nachman Pundak; Yoav Zur; Ramon Broyde; Moshe Barak
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Paper 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.

Paper Details

Date Published: 4 May 2010
PDF: 9 pages
Proc. SPIE 7660, Infrared Technology and Applications XXXVI, 76602L (4 May 2010); doi: 10.1117/12.850006
Show Author Affiliations
Avishai Filis, RICOR-Cryogenic and Vacuum Systems (Israel)
Nachman Pundak, RICOR-Cryogenic and Vacuum Systems (Israel)
Yoav Zur, RICOR-Cryogenic and Vacuum Systems (Israel)
Ramon Broyde, RICOR-Cryogenic and Vacuum Systems (Israel)
Moshe Barak, RICOR-Cryogenic and Vacuum Systems (Israel)


Published in SPIE Proceedings Vol. 7660:
Infrared Technology and Applications XXXVI
Bjørn F. Andresen; Gabor F. Fulop; Paul R. Norton, Editor(s)

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