Cover E DIN EN IEC 61788-17 VDE 0390-17:2019-10
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E DIN EN IEC 61788-17 VDE 0390-17:2019-10

* German Language Version *

Superconductivity

Part 17: Electronic characteristic measurements – Local critical current density and its distribution in large-area superconducting films

(IEC 90/433/CD:2019); Text in German and English
Class/Status: Draft, valid
Released: 2019-10   Published: 2019-09-27
VDE Art. No.: 1300109
End of objection deadline: 2019-11-27

Contents

This part of IEC 61788 describes the measurements of the local critical current density (Jc) and its distribution in large-area high-temperature superconducting (HTS) films by an inductive method using third-harmonic voltages. The most important consideration for precise measurements is to determine Jc at liquid nitrogen temperatures by an electric-field criterion and obtain current-voltage characteristics from its frequency dependence. Although it is possible to measure Jc in applied DC magnetic fields, the scope of this standard is limited to the measurement without DC magnetic fields.