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Mesure de la masse de fluides cryogéniques par une méthode capacitive.

Capacitance based mass metering for cryogenic fluids.

Auteurs : NURGE M. A., YOUNGQUIST R., WALTERS D.

Type d'article : Article

Résumé

The paper describes a method for measuring the mass of cryogenic fluids in on-board rocket propellant tanks or ground storage tanks. Linear approximations to the Clausius-Mossotti relationship serve as the foundation for a capacitance based mass sensor, regardless of fluid density stratification or tank shape. Sensor design considerations are presented along with the experimental results for a capacitance based mass gage tested in liquid nitrogen. This test data is shown to be consistent with theory resulting in a demonstrated mass measurement accuracy of plus or minus 0.75% and a deviation from linearity of less than about 0.30% of full scale mass. Theoretical accuracies are also shown to be plus or minus 0.73% for hydrogen and 1.39% for oxygen for a select range of pressures and temperatures.

Détails

  • Titre original : Capacitance based mass metering for cryogenic fluids.
  • Identifiant de la fiche : 2005-0004
  • Langues : Anglais
  • Source : Cryogenics - vol. 43 - n. 9
  • Date d'édition : 09/2003

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