High Efficiency Pulse Tube Cooler
High Efficiency Pulse Tube Cooler
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DOI：
10.1007/0-306-47112-4_21
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
E. Tward;C. Chan;J. Raab;T. Nguyen;R. Colbert;T. Davis
中科院分区：
文献类型：
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作者：
E. Tward;C. Chan;J. Raab;T. Nguyen;R. Colbert;T. Davis
高效制冷器(HEC)正在开发中，目的是提供一种长寿命、低质量、高效率的空间制冷器，适用于用于SBIRS Low等监视任务的轻型万向架光学装置。本文介绍了新一代空间脉冲管制冷机的研制和试验情况，该系列制冷机具有制冷量大、质量小、电磁干扰小、自激振动小等特点。由于其脉冲管冷头和高效压缩机的效率，HEC实现了低输入功率和大冷却功率。低质量(<；3公斤)的主要原因是它的下一代牛津弯曲压缩机技术在一篇配套论文中报道。预计的长寿命和高可靠性源于使用经过验证的低复杂性挠性压缩机和脉冲管冷头。它的低电磁干扰是由于它的自屏蔽电机。低自激振动是其内部动平衡的结果。它的特点是易于集成到小型脉冲管冷却器的仪器中。该冷却器在95K时达到了10W的冷却要求，具有相当大的余量，同时拒绝了300K的热量。
The High Efficiency Cooler (HEC) is being developed in order to provide a long life, low mass, high efficiency space cryocooler suitable for use on lightweight gimbaled optics on surveillance missions such as SBIRS Low. This paper reports on the development and testing ofthis next generation family of space pulse tube cryocoolers which feature high cooling capacity, lower mass, lower EMI and lower self induced vibration than the current state of the art. The HEC achieves low input power and large cooling power because of the efficiency of its pulse tube cold head and highly efficient compressor. The low mass (<3 kg) results chiefly from its next generation Oxford flexure compressor technology reported in a companion paper. The projected long lifetime and high reliability results from use of the proven low complexity flexure compressor and pulse tube cold head. Its low EMI is due to its self-shielding motor. The low self induced vibration results from its internal dynamic balancing. It features the ease of integration into an instrument of a small pulse tube cooler. The cooler achieves its 10 W at 95K cooling requirement with substantial margin while rejecting heat to 300K.