论文部分内容阅读
工业热分析系统中使用的致冷设备通常采用以下两种基本方法。第一种方法,用于支持测量探头的金属块热沉直接浸没在低温液浴槽中。在使用液氮的情况下,分析系统的温度可达95～100 K。这种方法的主要缺点是低温液浴槽中的液氮面高度
Refrigeration equipment used in industrial thermal analysis systems generally uses the following two basic methods. The first method, used to support the measurement probe heat sink metal submersible immersed directly in the bath. In the case of liquid nitrogen, the temperature of the analysis system can reach 95 ~ 100 K. The main disadvantage of this method is the height of the liquid nitrogen surface in the cryogenic liquid bath