Lewis, R.
, Wang, Y.
, Cooper, J.
, Lin, M.
, Bright, V.
, Lee, Y.
, Bradley, P.
, Radebaugh, R.
and Huber, M.
(2011),
Micro Cryogenic Coolers for IR Imaging, SPIE 2011 Defense, Security, and Sensing Conference, Orlando, FL, US, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=908496
(Accessed April 18, 2024)
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Micro Cryogenic Coolers for IR Imaging
Published
Author(s)
Ryan J. Lewis, Yunda Wang, Jill Cooper, Mu Hong Lin, Victor M. Bright, Yung-Cheng Lee, , ,
Abstract
Joule-Thomson micro cryogenic coolers (MCCs) are a preferred approach for small and low power cryocoolers. With the same heat lift, MCC's power input can be only 1/10 of a thermoelectric cooler's input, and MCC's size can be only 1/10 of a Stirling cooler's size. With futuristic planar MCC and with high frequency MEMS compressors to be developed, its size can be reduced another order of magnitude. Such "invisible" cryocoolers may revolutionize future IR imaging systems. We will review our studies on the feasibility of MCC with an emphasis on: 1) high thermal isolation levels reaching 89,000 K/W; 2) custom-designed gas mixtures with refrigeration capabilities increased by 10X and pressure ratio reduced to only 4:1; 3) compressors with low pressure ratios; and 4) excellent scalability for further size reduction.Proceedings Title
SPIE 2011 Defense, Security, and Sensing Conference
Volume
8012
Conference Dates
April 25-29, 2011
Conference Location
Orlando, FL, US
Pub Type
Conferences
Download Paper
Keywords
Cryocooler, Cryogenic, Joule-Thomson, Packaging, MEMS, IR Imaging, Thermoelectric, Stirling, Cooler
Citation
Created April 28, 2011, Updated October 12, 2021