【摘要】 介绍日本空间探测器中液氦温区低温技术的发展历程,大致可以分成3个阶段:超流氦杜瓦(湿法)、斯特林制冷机冷却超流氦杜瓦(半干半湿法)以及斯特林制冷机预冷J-T(Joule-Thomson)制冷机(干法).通过不断改进,制冷机的性能和可靠性稳步提高.日本依托一系列空间项目,用早期项目的经验为后续计划确定方向,在解决问题的过程中进步,可以为我国开发相关技术提供参考.更多还原

【Abstract】 The development history of cryogenic system at liquid helium temperature utilized in Japan space detector was introduced.There are three stages:superfluid helium dewar(wet system),superfluid helium dewar cooled by Stirling cooler(system of both dry and wet),Joule-Thomson cooler cooled by Stirling cooler(dry system).The performance and reliability of coolers steadily improves with continually improvement.Japan depends on a series of space missions,orients the direction of following projects using the early experiences,and makes progresses when solving problems,which is instructive for our country when developing related technology.更多还原