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Precise Wide Range Heatmeters for 1.5 K up to 80 K

  • G. Ferlin
  • B. Jenninger
  • J.-M. Rieubland
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 43)

Abstract

Two heatmeters were designed at CERN for applications below 20 K with the option to work also at temperatures up to 80 K. The new calibration principle and design permits the construction of wide range heatmeters with precision in the range of milliwatts. The calibration function takes into account the temperature dependence of the thermal conductivity of the heatmeter material. The heat flow measurement is, therefore, independent of the base temperature, i.e. it is also independent on the temperature drop across thermal contact between heatmeter and the cold source. The simple calibration function makes the heatmeter a user-friendly portable diagnostic device. It is possible to quantify parasitic heat flow without a previous calibration, or to calibrate the heatmeter during a measurement with a specimen.

Keywords

Heat Flow Calibration Function Heat Flow Measurement Parasitic Heat Calibration Heat Flow 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • G. Ferlin
    • 1
  • B. Jenninger
    • 1
  • J.-M. Rieubland
    • 1
  1. 1.CERN-LHC divisionGenevaSwitzerland

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