Low Temperature System for Thermal Conductivity Measurements
作者:
Miles V. Klein,
R. F. Caldwell,
期刊:
Review of Scientific Instruments
(AIP Available online 1966)
卷期:
Volume 37,
issue 10
页码: 1291-1297
ISSN:0034-6748
年代: 1966
DOI:10.1063/1.1719962
出版商: AIP
数据来源: AIP
摘要:
Germanium and platinum resistance thermometers are used with two metal Dewars over the temperature range from 1.2 to 300°K. A variable conductance helium exchange gas switch is employed together with automatic heating to maintain any desired temperature within this range. Two coupled potentiometric dc measuring circuits are used—one to measure and control the sample temperature, and the other to measure the temperature gradient. The performance of the system is discussed.
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