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ＬＨ２、ＬＮ２为冷源．用减压降温和增压升温的方法．分别获得了１４Ｋ～３０Ｋ、６３Ｋ～１００Ｋ的浴槽温度。恒温精度优于±５０ｍＫ／２０ｍｉｎ。ＬＨ２耗量＜２．５／ｈ。ＬＮ２耗量＜０．６Ｌ／ｈ。适用于热电偶温度计和电阻温度计的比对校准。
LH2, LN2 cold source. With decompression cooling and heating method. Respectively obtained 14K ~ 30K, 63K ~ 100K bath temperature. Temperature accuracy is better than ± 50mK / 20min. LH2 consumption <2.5 / h. LN2 consumption <0.6L / h. Suitable for thermocouple thermometer and resistance thermometer calibration.