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Jauge de pression différentielle capacitive pour mesure à basse température et insensible au milieu diélectrique.

Dielectric-insensitive capacitive differential pressure gauge for use at low temperature.

Auteurs : TALBOT T., BRISSON J. G.

Type d'article : Article

Résumé

A capacitive differential pressure gauge for use at temperatures below 4 K is described. Fluid is admitted to two sample chambers with flexible walls to which a sensing capacitor is mechanically connected. Differential pressures between the chambers flex these walls and change the capacitance of the gauge. Because the capacitor is located outside these chambers, the gauge is insensitive to the dielectric variations of the fluid. Typical differential pressures of 100,000 Pa were measured with a common mode rejection ratio in excess of 50.

Détails

  • Titre original : Dielectric-insensitive capacitive differential pressure gauge for use at low temperature.
  • Identifiant de la fiche : 2000-2346
  • Langues : Anglais
  • Source : Rev. sci. Instrum. - vol. 70 - n. 4
  • Date d'édition : 04/1999
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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