Abstract The Standard Advanced Dewar Assembly (SADA) is the critical module in the Department of Defense (DoD) standardization effort of scanning second-generation thermal imaging systems. DOD has established a family of SADA’s to address high performance (SADA I), mid-to-high performance (SADA II), and compact class (SADA III) systems. SADA’s consist of the Infrared Focal Plane Array (IRFPA), Dewar, Command & Control Electronics (C&CE), and the cryogenic cooler. SADA’s are used in weapons systems such as Comanche and Apache helicopters, the M1 Abrams Tank, the M2 Bradley Fighting Vehicle, the Line of Sight Antitank (LOSAT) system, the Improved Target Acquisition System (ITAS), and Javelin’s Command Launch Unit (CLU). DOD has defined a family of tactical linear drive coolers in support of the family of SADA’s. The Stirling linear drive cryo-coolers are utilized to cool the Infrared Focal Plane Arrays (IRFPAs) in the SADA‐s. These coolers are required to have low input power, a quick cool-down time, low vibration output, low audible noise, and higher reliability than currently fielded rotary coolers. This paper: (1) outlines the characteristics of each cooler, (2) presents the status and results of qualification tests, (3) discusses issues that have impacted cooler reliability, and (4) presents the status and test results of efforts to increase linear drive cooler reliability.
Status Report on the Linear Drive Coolers for the Department of Defense Standard Advanced Dewar Assembly (SADA)
Cryocoolers 12 ; 17-25
01.01.2003
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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