期刊
REVIEW OF SCIENTIFIC INSTRUMENTS
卷 90, 期 2, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5084103
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资金
- NRC Kurchatov Institute
- Russian Foundation for Basic Research [19-07-00229]
This article describes an improvement of the 3-omega thermal conductivity measurement system facilitating automatic mode measurement. The use of the electrical circuit with negative feedback to compensate the first harmonic in the voltage signal on the heater-thermometer eliminates manual resistance tuning. To test the procedure, measurements of the thermal conductivity of single crystal sapphire Al2O3 were made. The experimental thermal conductivity value is in a good agreement with the reference data. Published under license by AIP Publishing.
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