低温装置中温度测量的热沉问题  

Heat Sink for Temperature Measurement in the Cryogenic Equipment

作　　者：白红宇[1] 

机构地区：[1]中国科学院等离子体物理研究所,合肥230031

出　　处：《低温与超导》2000年第3期10-14,共5页Cryogenics and Superconductivity

摘　　要：文中讨论了低温装置中的热沉问题。为减少因电引线导热对温度计的热负荷 ,提高温度测量的精度 ,在温度计的引线中加入热沉将是非常必要而且有效的手段。文中解决了不同边界条件下所需的热沉长度的求解问题 。The problem of heat sinks in cryogenic equipment is discussed. To reduce the heat conduction to the temperature sensors through the electrical leads and to improve the accuracy of temperature measurement, it is very important and efficient to dump the heat load into the heat sink. The calculation of heat sink length in different boundary conditions and their applications are presented in this paper.

关 键 词：热沉 温度测量 低温装置 温度计 电引线 精度 

分 类 号：TB942[一般工业技术—计量学] TH811[机械工程—测试计量技术及仪器]