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Refroidisseur cryogénique linéaire split de Stirling pour applications infrarouges portables.

Microminiature linear split Stirling cryogenic cooler for portable infrared applications.

Auteurs : VEPRIK A., VILENCHIK H., RIABZEV S., et al.

Résumé

Novel tactics, employed in carrying out military and antiterrorist operations, call for the development of a new generation of warfare, in addition, sophisticated portable infrared (IR) imagers for surveillance, reconnaissance, targeting and navigation play an important role. The superior performance of these imagers relies on novel optronic technologies and cooling the IR focal plane arrays to cryogenic temperatures. Traditionally, closed cycle rotary driven Stirling cryogenic engines are used for this purpose. As compared to their off-the-shelf available linear rivals, they are lighter, more compact and normally consume less electrical power. Recent technological advances in industrial development of high-temperature (100 K) IR detectors initialized attempts for developing microminiature cryogenic coolers, both of rotary and linear types. Linearly driven cryogenic coolers appear to be more suitable for these applications. The advantages include flexibility in the system design, longer lifetime, low exported vibration and aural stealth. Recent progress in designing high efficiency "moving magnet" resonant linear drives and accompanied electronics enable further reduction in the cooler size, weight and power consumption. The development and project status of the Ricor model K527 microminiature split Stirling linear cryogenic cooler designed especially for portable infrared imagers is reported herein.

Détails

  • Titre original : Microminiature linear split Stirling cryogenic cooler for portable infrared applications.
  • Identifiant de la fiche : 2008-1073
  • Langues : Anglais
  • Sujet : Technologie
  • Date d'édition : 14/06/2006
  • Source : Source : Proc. 14th int. Cryocooler Conf., Annapolis, MD
    10 p.; fig.; phot.; 10 ref.

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