红外技术, 2018, 40 (7): 679, 网络出版: 2018-08-04  

记忆合金制冷器自调机构的设计

Design of Self-Regulating Mechanism for Shape Memory Alloy Joule–Thomson Cooler
作者单位
华北光电技术研究所,北京 100015
摘要
介绍了记忆合金在低温下发生形变的原理及其在节流制冷器中的应用,针对以螺旋弹簧形状记忆合金材料为自调元件的节流制冷器,对其实现自调的条件、影响自调时间以及自调后稳定流量的参数进行了论述,并阐述了记忆合金自调型节流制冷器自调时间与探测器到达工作温度时间之间的关系。
Abstract
: The principle of operation of a shape memory alloy (SMA) and its application to a Joule-Thomson(J-T) cooler is introduced. For a J-T cooler whose self-regulating element is an SMA spring, the condition for self-regulation as well as the factors that affect the time of self-regulation and stable flow after self-regulation are discussed. The relationship between the time duration of self-regulation for the SMA J-T cooler, and the time of the detector to reach operating temperature is described.

韩蓬磊, 聂雪莲. 记忆合金制冷器自调机构的设计[J]. 红外技术, 2018, 40(7): 679. HAN Penglei, NIE Xuelian. Design of Self-Regulating Mechanism for Shape Memory Alloy Joule–Thomson Cooler[J]. Infrared Technology, 2018, 40(7): 679.

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