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Thermal modelling of absolute cryogenic radiometers.

Author(s) : ZHANG Z. M., DATLA R. U., LORENTZ S. R., TANG H. C.

Type of article: Article

Summary

The work consists of a detailed thermal modelling of two different radiometers operated at cryogenic temperatures. Both employ a temperature sensor and an electrical-substitution technique to determine the absolute radiant power entering the aperture of a receiver. Their sensing elements are different. The finite element method is used to predict the transient and steady-state temperature distribution in the receiver. Recommendations are given based on the modelling for future improvement of the dynamic response of both radiometers.

Details

  • Original title: Thermal modelling of absolute cryogenic radiometers.
  • Record ID : 1995-3373
  • Languages: English
  • Source: J. Heat Transf. - vol. 116 - n. 4
  • Publication date: 1994/11
  • Document available for consultation in the library of the IIR headquarters only.

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