小型致冷机可以用来冷却红外探测系统的敏感元件。工作范围为60K到80K。制冷量为0.1瓦到2瓦。这两个指标又取决于冷却的探测器数目和探测器一制冷机接合面的热效率。这类小型制冷机的平均无故障时间应当大于2500小时,而且温度回升要很小。根据菲利浦公司几十年来从事低温工作的经验,在空间红外探测器上,采用斯特林循环的小型制冷机可以 Small coolers can be used to cool the infrared sensing system’s sensitive components. The working range is 60K to 80K. Cooling capacity is 0.1 W to 2 W. In turn, these two criteria depend on the number of cooled detectors and the thermal efficiency of the detector-chiller interface. The average time to failure for such small chillers should be more than 2,500 hours and the temperature rise should be small. According to Phillips company’s decades of experience in low-temperature work, the space infrared detector, the use of Stirling cycle can be a small refrigerator