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Étude d’une nouvelle méthode de régulation automatique de la température et de composants électroniques pour des cryorefroidisseurs multiétagés à tube à pulsation de type Stirling.

Investigations on a novel automatic temperature control method and electronics for multi-stage Stirling-type pulse tube cryocoolers.

Numéro : pap. n. 971

Auteurs : TAN J., ZHANG T., ZHA R., et al.

Résumé

The automatic temperature control electronics for the multi-stage Stirling-type pulse tube cryocooler (SPTC) is indispensable in simultaneously maintaining steady cooling temperatures for each stage in practical applications. A novel automatic temperature control method based on expert PID/fuzzy hybrid control method is proposed and its characteristics are elaborated. The design of the control electronics is depicted and the prototype has been tested on a two-stage SPTC providing cooling at 30 K and 85 K, and a three-stage SPTC with cooling temperatures of 90 K, 40 K and 10 K at stages, both developed in the authors’ laboratory. Experimental results show that, with the novel control method and developed electronics, high temperature stability of ±0.3 K@85 K and ±0.2 K@30 K can be obtained for the two-stage SPTC and ±0.5 K@90 K, ±0.2 K@40 K, ±0.15 K@10 K are achieved for the three-stage one.

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Pages : 9

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Détails

  • Titre original : Investigations on a novel automatic temperature control method and electronics for multi-stage Stirling-type pulse tube cryocoolers.
  • Identifiant de la fiche : 30026289
  • Langues : Anglais
  • Source : Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Date d'édition : 24/08/2019
  • DOI : http://dx.doi.org/10.18462/iir.icr.2019.0971

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