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Hlavní stránka>BS EN IEC 61788-7:2020 Superconductivity Electronic characteristic measurements. Surface resistance of high-temperature superconductors at microwave frequencies
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sklademVydáno: 2020-05-20
BS EN IEC 61788-7:2020 Superconductivity Electronic characteristic measurements. Surface resistance of high-temperature superconductors at microwave frequencies

BS EN IEC 61788-7:2020

Superconductivity Electronic characteristic measurements. Surface resistance of high-temperature superconductors at microwave frequencies

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Označení normy:BS EN IEC 61788-7:2020
Počet stran:50
Vydáno:2020-05-20
ISBN:978 0 580 52239 0
Status:Standard
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BS EN IEC 61788-7:2020


This standard BS EN IEC 61788-7:2020 Superconductivity is classified in these ICS categories:
  • 29.050 Superconductivity and conducting materials
  • 17.220.20 Measurement of electrical and magnetic quantities
IEC 61788-7:2020 is available as IEC 61788-7:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 61788-7:2020 describes measurement of the surface resistance (Rs) of superconductors at microwave frequencies by the standard two-resonator method. The object of measurement is the temperature dependence of Rs at the resonant frequency. The applicable measurement range of Rs for this method is as follows: - Frequency: 8 GHz < f < 30 GHz - Measurement resolution: 0,01 m ? at 10 GHz The Rs data at the measured frequency, and that scaled to 10 GHz, assuming the f 2 rule for comparison, is reported. This third edition cancels and replaces the second edition, published in 2006. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) informative Annex B, relative combined standard uncertainty for surface resistance measurement has been added; b) precision and accuracy statements have been converted to uncertainty; c) reproducibility in surface resistant measurement has been added.