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Measurements of internal heat transfer in germanium resistance thermometers.

Author(s) : BESLEY L. M., HAI L.

Type of article: Article

Summary

Heat transfer processes through the solid materials and the filling gas in germanium resistance thermometers from three manufacturers have been investigated experimentally at temperatures from 4.2 to 120 K. The heat transfer coefficient for these thermometers is found to vary by a factor of 50 for different types and different temperatures. In some thermometers, conduction through the gas is greater than that through the solid leads and the influence of contamination of the gas at temperatures between 45 and 65 K is very significant but solid conduction should be enhanced in the design of germanium resistance thermometers for use in the liquid-nitrogen temperature range.

Details

  • Original title: Measurements of internal heat transfer in germanium resistance thermometers.
  • Record ID : 1994-2183
  • Languages: English
  • Source: Rev. sci. Instrum. - vol. 64 - n. 3
  • Publication date: 1993/03
  • Document available for consultation in the library of the IIR headquarters only.

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