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Titlebook: Cryocoolers 11; R. G. Ross Book 2002 Springer Science+Business Media New York 2002 electronics.material.refrigeration.space

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发表于 2025-3-21 19:59:38 | 显示全部楼层 |阅读模式
书目名称Cryocoolers 11
编辑R. G. Ross
视频video
图书封面Titlebook: Cryocoolers 11;  R. G. Ross Book 2002 Springer Science+Business Media New York 2002 electronics.material.refrigeration.space
描述Over the last two years we have witnessed a continuation in the breakthrough shift toward pulse tube cryocoolers for long-life, high-reliability cryocooler applications. One class of pulse tubes that has reached maturity is referred to as "Stirling type" because they are based on the linear Oxford Stirling-cooler type compressor; they generally provide cooling in the 30 to 100 K temperature range and operate at frequencies from 30 to 60 Hz. The other type of pulse tube cooler making great advances is the so-called "Gifford-McMahon type. " Pulse tube coolers of this type use a G-M type compressor and lower frequency operation to achieve temperatures in the 2 to 10 K temperature range. Nearly a third of this proceedings covers these new developments in the pulse tube arena. Complementing the work on low-temperature pulse tubes is substantial continued progress on rare earth regenerator materials and Gifford-McMahon coolers. These technologies continue to make great progress in opening up the 2 - 4 K market. Also in the commercial sector, continued interest is being shown in the development of long-life, low-cost cryocoolers for the emerging high temperature superconductor electronics
出版日期Book 2002
关键词electronics; material; refrigeration; space
版次1
doihttps://doi.org/10.1007/b115268
isbn_softcover978-1-4899-4411-5
isbn_ebook978-0-306-47112-4
copyrightSpringer Science+Business Media New York 2002
The information of publication is updating

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发表于 2025-3-21 23:31:40 | 显示全部楼层
mal imaging systems. DOD has established a family of SADAs to address high performance (SADA I), mid-to-high performance (SADA II), and compact class (SADA III) systems. SADAs consist of the Infrared Focal Plane Array (IRFPA), Dewar, Command & Control Electronics (C&CE), and the cryogenic coolers. S
发表于 2025-3-22 03:01:09 | 显示全部楼层
ation of the. long-term performance of different types of cryocoolers. These coolers were developed to support the long life space mission requirements of the United States Air Force SBIRS-Low Program Office, the Ballistic Missile Defense Organization (BMDO), the National Aeronautics and Space Admin
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at 60 K. This Oxford-class unit employs three finger tangential flexures in the compressor module. These flexures have been shown to provide smoother, lower vibration piston motion than previously obtained with conventional three finger spiral flexures. Acceptance Tests validated the required perfor
发表于 2025-3-22 14:16:30 | 显示全部楼层
Karen Keifer-Boyd,Wanda B. Knight,Ann Holtir Force SBIRS Low Program Office. It was created to characterize the thermodynamic performance and long life potential of cryogenic cooling technologies developed by various defense industry contractors. The objectives of the characterization process are to explore the cooler’s ability to perform a
发表于 2025-3-22 19:33:51 | 显示全部楼层
Peter Mbago Wakholi,Peter R. Wrighttors. This program has been sponsored by the US Ballistic Missile Development Organization. It is a further extension of a Rutherford Appleton Laboratory (RAL) 20 K cooler being space qualified at Astrium (formerly Matra Marconi Space (MMS)). New features include optimized geometry and enhanced rege
发表于 2025-3-23 00:53:07 | 显示全部楼层
The Importance of Being Upside-Downur analysis shows that hybrids consisting of a Joule-Thomson (J-T) cooler coupled with a mechanical cooler are the most efficient when used in a low Earth orbit. We are developing a hybrid cryocooler consisting of a helium J-T system coupled to a Stirling cycle mechanical cooler for these applicatio
发表于 2025-3-23 03:08:11 | 显示全部楼层
Awakening Mindfulness in Science Educationproperties associated with geometry, materials, gas properties, heat transfer devices, flow manifolds, mechanical mechanisms, and electro-mechanical devices that determine a particular machine’s performance make quick optimization difficult. Single-stage coolers are now sufficiently well understood
发表于 2025-3-23 09:04:43 | 显示全部楼层
https://doi.org/10.1007/978-94-6351-182-7anufacture of large-volume free-piston (linear) compressors. The price of the cryocooler is projected to be $2,000 per unit in lots of 10,000, with availability in the first quarter of 2001. In comparison to the M77 cryocooler, the M87 shows enhanced rated efficiency (20%), improved cooling power, a
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