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Instabilité de la température dans les tubes à pulsation d'une durée de fonctionnement longue.

Temperature instabilities in a long-running pulse tube.

Auteurs : WALDAUF A., THÜRK M., SEIDEL P.

Résumé

The authors report on investigations of anomalous temperature instabilities in a four-valve pulse-tube refrigerator. Spontaneous temperature variation, which occurred at the cold tip, were observed. The dc-flow could be identified as the remaining source of the observed anomaly. It can be eliminated by utilizing an actively controlled dc-flow suppression device, that uses a temperature difference in the regenerator as the control parameter. Further, the authors show corresponding improvements of the device to give a better performance of the cooler. The short-term temperature instabilities are eliminated as well.

Détails

  • Titre original : Temperature instabilities in a long-running pulse tube.
  • Identifiant de la fiche : 2006-0012
  • Langues : Anglais
  • Source : Proceedings of the nineteenth International Cryogenic Engineering Conference. ICEC 19.
  • Date d'édition : 22/07/2002

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