3He melting curve thermometers are one of the most reliable thermometers to use in the 20-800 mK temperature range.
The thermometer consists of a carefully designed strain gauge with components selected for negligible field dependence. The working space is filled with a mixture of liquid and solid 3He and is operate along the melting curve of 3He which is known precisely as a function of temperature and magnetic field.
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Last modified on 23 December 2022