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首页> 外文期刊>Progress in Aerospace Sciences >Control of spaceborne linear cryocoolers: A review
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Control of spaceborne linear cryocoolers: A review

机译：星载线性制冷器的控制：综述

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摘要

Presently, IR (Infra-Red) detectors are best suitable for spaceborne remote sensing satellites. The IR detectors can be operated at cryogenic temperatures to extract the low-level signal from the background noise. The IR detectors are cooled and controlled at cryogenic temperatures using active cryocoolers. These cryocoolers employed in spaceborne remote sensing satellites generally operate on closed-loop Stirling Cycle. Different variants of these cryocoolers employing linear/rotary motors and Stirling/Pulse Tube cryocoolers have been widely employed in several missions by NASA, ESA, and JAXA. The cryocooler control electronics (CCE) is responsible for providing the drive signal to control the cold-tip temperature keeping vibration exports within desired limits. There is ample literature on control algorithms that help to understand how to control the cold-tip temperature of the cryocooler. Also, various active and passive techniques have been used to reduce the vibration export from the cryocooler. This review paper summarizes different techniques and control algorithms employed in CCE for spaceborne linear cryocoolers. The paper also includes the recent trends practiced in active vibration control to reduce the vibrations of linear cryocoolers used for Onboard and Ground Applications. The control algorithms attract core area of discussion whereas the performance of several techniques has been analyzed with a thoughtful conclusion.
机译：目前，红外（IR）探测器最适合于星载遥感卫星。红外探测器可以在低温下工作，以从背景噪声中提取低电平信号。使用主动式低温冷却器将红外探测器冷却并控制在低温下。这些在航天遥感卫星中使用的低温冷却器通常以闭环斯特林循环运行。 NASA，ESA和JAXA已在多种任务中广泛采用了采用线性/旋转电机和斯特林/脉冲管式低温冷却器的这些低温冷却器的不同变体。低温冷却器控制电子设备（CCE）负责提供驱动信号，以控制冷端温度，从而将振动输出保持在所需的限制内。关于控制算法的文献很多，有助于理解如何控制低温冷却器的冷端温度。而且，已经使用了各种主动和被动技术来减少从低温冷却器输出的振动。这篇综述总结了星载线性制冷器在CCE中采用的不同技术和控制算法。本文还介绍了主动振动控制中实践的最新趋势，以减少用于车载和地面应用的线性冷冻机的振动。控制算法吸引了讨论的核心领域，而对几种技术的性能进行了深思熟虑的分析。

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