日本宇宙科学研究所、日本原子能研究所及东芝公司最近联合发明了脉冲管式高性能小型宇宙冷冻机,可用作人造卫生上的精密仪器冷却。安装在人造卫星上的红外摄影仪等观测仪器的精度,在很大程度上受到宇亩冷冻机制冷能力的制约,目前已达实用水平的斯特令(STIRLING)式冷冻机制冷能力不足。 The Japan Institute of Astronautics, Japan Atomic Energy Research Institute and Toshiba recently jointly invented a pulse tube high performance mini-size freezer for cooling precision instruments used in man-made hygiene. The accuracy of observing instruments such as infrared cameras mounted on satellites is largely limited by the refrigeration capacity of a mu refrigerator, and the STIRLING freezer that has reached a practical level has insufficient cooling capacity.