Realization of Helium-4 Vapor Pressure Temperature Scale by Using an Absolute Pressure Transducer.

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Other Title
  • 絶対圧計を用いたヘリウム４蒸気圧温度目盛の実現

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Description

Helium-4 vapor pressure temperature scale between 2.25K and 4.25K is realized according to the International Temperature Scale of 1990 by using an absolute pressure transducer. The pressure measurement system is much simpler than the conventional precision pressure measurement system using a pressure balance and a differential pressure transducer simultaneously. Standard-type rhodium-iron resistance thermometers are calibrated against the realized scale. The combined standard uncertainty of the calibration is estimated to be less than 0.1mK, including the uncertainty of scale realization, resistance measurement, and the residuals of the third-order polynomial fitting equation.

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Details 詳細情報について

  • CRID
    1390282679591259648
  • NII Article ID
    130003449433
  • DOI
    10.2221/jcsj.36.419
  • ISSN
    18800408
    03892441
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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