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The Thermomolecular Pressure Difference Effect

  • Franco Pavese
  • Gianfranco Molinar
Part of the The International Cryogenics Monograph Series book series (ICMS)

Abstract

The thermomolecular pressure difference is one of several phenomena that are significant when pressure measurements are made under purely gaseous conditions, particularly when large differences in temperature exist between the place in which pressure measurements have to be carried out and a reference place, where temperature is generally room temperature and precise pressure measurements can be made by primary or transfer standards. Such phenomena need careful consideration and must be corrected for.

Keywords

Pressure Difference Stainless Steel Tube Tube Surface Free Molecular Flow Reference Place 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • Franco Pavese
    • 1
  • Gianfranco Molinar
    • 1
  1. 1.Istituto di Metrologia “G. Colonnetti”, IMGCNational Research Council-CNRTurinItaly

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