微微型JT节流器（MMR）

Microminatuure Joule-Thomson Refrigerator

微微型ＪＴ节流器（简称ＭＭＲ）发明于１９７８年，它以其高效性、结构简单、无噪声、无震动、低流率和快速预令等优点，被广泛地应用在军工及其它高科技领域中。微微型ＪＴ节流器是根据由微型逆流换热器理论发展来的设计理论，再结合光刻技术而制造出来的。它可以使用单工质或混合工质，能够满足较大的制冷温区。本文将回顾这种节流器的基本设计理论，制造工艺，基本性能及应用和发展前景。

The first microminiture Joule-Tomson refrigerator(MMR)Was developed in 1978.This kind of refrigerator can be widely used in military field and other high technical fields because it has nary advantages, suchas high efficiency,simplicity,smallsize, no noise or vibration,low massrate and fast cool-down.According to an elementary tratment from the theory of count currentheat exchanger and the photolithgraphic manufacturing process,the refri-gerator is manufatured. Either pure or mixture workfluid can be used fotthis kind of refrigerator.So that it is suitable to a large temperature range,for many kinds of fields and it has prospective achicvement.