BAE’s Life Test Results on Various Linear Coolers and Their Correlation with a First Order Life Estimation Method

Kuo, D. T.; Lody, T. D.; Yuan, Shandong

doi:10.1007/0-306-47112-4_82

Cited by 6 publications

(3 citation statements)

References 1 publication

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“…Based on the life test of other models of the same design (Table 4), CMC fully anticipates that the life of the B5000 cooler will exceed 10,000 hours. CMC is actively pursuing to extend the life of our coolers through material selection, life predictions [13,14], contamination studies [15,16], and new designs (including pulse tube [17,18] and flexure bearings [17]).…”

Section: Long Lifementioning

confidence: 99%

Qualification and test results of a 5 Watt commercial Stirling cryocooler

Yuan¹,

Kuo²,

Lody³

2002

AIP Conference Proceedings

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We have successfully developed and qualified a 5-Watt Stirling cryocooler that is suitable for commercial applications in the high temperature superconductor (HTS) wireless communication systems. The cooldown time to 77 K is less than 5 minutes (with 4 Watts heat load and a thermal mass of 1465 Joules). The cooler can provide a refrigeration capacity of ~5 Watt at 70 K. The qualification and test results of this cooler are discussed. FIGURE 1. A photograph of the B5000E Cooler.

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Section: Long Lifementioning

confidence: 99%

Qualification and test results of a 5 Watt commercial Stirling cryocooler

Yuan¹,

Kuo²,

Lody³

2002

AIP Conference Proceedings

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“…Figure 1 shows the temperature response of a coldfinger in a low temperature (-40°C), room temperature (23°C) and a high ambient temperature (+71°C) environment. As a first order approximation, the cooler degradation is proportional to its input power [5]. The test data were obtained with a copper thermal mass and heat loads of 300mW at -40°C, 400mW at 23°C and 500mW at +71°C.…”

Section: Introductionmentioning

confidence: 99%

Advanced control electronics for Stirling cryocoolers

2003

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Advanced Split Linear and Integral Stirling cryocoolers for JR applications are controlled by external or integrated control electronics to provide a stable preset temperature at the focal plane. AIM produces a family of Split Linear Stirling coolers with integrated control electronics inside the compressor housing.The new AM 7 electronic is standardized to one configuration which meets the different input power requirements and temperature settings of all AIM coolers ranging between lOW till 1 05W input power. AIM has completed the development of the AM 7 electronics to improve temperature stability over the entire range of operating conditions and to optimize ramp up of input power for different cool down conditions. Thus, reduced cooldown time at high ambients and softer startup at low temperatures are achieved. Optionally, the electronics can be supplemented with an external add-on microprocessor unit for advanced system requirements.The 3rd gen. electronics will be implemented into rate production 4Q2002. Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/27/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx Proc. of SPIE Vol. 4820 21 Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/27/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx

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“…The empirical data presented here is used as the basis to estimate cooler life for applications that have different criteria and environmental conditions using the Watt-hour method[2].…”

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confidence: 99%

Reliability Growth of Tactical Coolers at CMC Electronics Cincinnati: 1/5-Watt Cooler Test Report

Kuo¹,

Lody²

2004

AIP Conference Proceedings

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CMC Electronics Cincinnati (CMC) is conducting a reliability growth program to extend the life of tactical Stirling-cycle cryocoolers. The continuous product improvement processes consist of testing production coolers to failure, determining the root cause, incorporating improvements and verification. The most recent life data for the 1/5-Watt Cooler (Model B512B) is presented with a discussion of leading root causes and potential improvements. The mean time to failure (MTTF) life of the coolers was found to be 22,552 hours with the root cause of failure attributed to the accumulation of methane and carbon dioxide in the cooler and the wear of the piston.

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BAE’s Life Test Results on Various Linear Coolers and Their Correlation with a First Order Life Estimation Method

Cited by 6 publications

References 1 publication

Qualification and test results of a 5 Watt commercial Stirling cryocooler

Qualification and test results of a 5 Watt commercial Stirling cryocooler

Advanced control electronics for Stirling cryocoolers

Reliability Growth of Tactical Coolers at CMC Electronics Cincinnati: 1/5-Watt Cooler Test Report

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