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IEC 61788-7-ed.3.0-RLV
Superconductivity - Part 7: Electronic characteristic measurements - Surface resistance of high-temperature superconductors at microwave frequencies
NORMA vydaná dňa 20.3.2020
Informácie o norme:
Označenie normy: IEC 61788-7-ed.3.0-RLV
Dátum vydania normy: 20.3.2020
Kód tovaru: NS-1095757
Počet strán: 132
Približná hmotnosť: 427 g (0.94 libier)
Krajina: Medzinárodná technická norma
Kategória: Technické normy IEC
Kategórie - podobné normy:
Anotácia textu normy IEC 61788-7-ed.3.0-RLV :
IEC 61788-7:2020 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its 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 ohm 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.
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