Experimental equipment research for cryogenic Joule-Thomson cryocoolers comparison in IR technology sensors.

Author(s) : SICOVIC A., MILINOVIC M., JEREMIC O.

Type of article: Article

Summary

This paper shows experimental setup for research of Joule-Thomson cryocoolers performances integrated in Dewar vessels with temperature detector simulator of IR sensor. Experimental solutions of transient temperature regimes of detector cooling on cryogenic cooldown temperature by using nitrogen as the coolant have been analyzed. In experiments of transient temperature influences, three principal methods of the fluid flow regulation, were compared. Results of experiments have shown important differences in quality and rate of cooling for IR detector integrated in cooling system with or without coolant flow regulation. The chosen thermodynamic regime parameters in experiments were suitable for the real necessities of detector cooling in IR sensor application. Scheme of the experimental equipment, its components, method of research and monitoring of desired transient function of temperature versus time in cooling (cooldown regime) of detector, and thermodynamic performances of the overall micro-cryogenic cooler are shown in this paper.

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Pages: 936-946

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Details

  • Original title: Experimental equipment research for cryogenic Joule-Thomson cryocoolers comparison in IR technology sensors.
  • Record ID : 30003975
  • Languages: English
  • Source: Strojniski vestnik - Journal of mechanical Engineering - vol. 57 - n. 12
  • Publication date: 2011/12

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