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Calorimetric alternating-current loss measurement in the microwatt range: a new simplified measuring technique.

Author(s) : SCHMIDT C.

Type of article: Article

Summary

A new method is described for calorimetric alternating-current loss measurement of technical superconductors. It is based on a technique which uses the slight temperature increase of a sample as a measure of the losses as opposed to the boil-off rate of liquid helium. The new technique described does not require a vacuum vessel; instead the sample is surrounded by a medium of low thermal conductivity. The measurement itself is quick and precise, with a resolution of about 5 microwatts, which is sufficient for most applications, even for testing of low loss conductors for 50 hertz use.

Details

  • Original title: Calorimetric alternating-current loss measurement in the microwatt range: a new simplified measuring technique.
  • Record ID : 1994-3424
  • Languages: English
  • Source: Cryogenics - vol. 34 - n. 1
  • Publication date: 1994/01

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