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DIN EN 61788-11 : 2012
Withdrawn
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SUPERCONDUCTIVITY - PART 11: RESIDUAL RESISTANCE RATIO MEASUREMENT - RESIDUAL RESISTANCE RATIO OF NB[3]SN COMPOSITE SUPERCONDUCTORS (IEC 61788-11:2011)
01-07-2017
12-01-2013
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
5 Apparatus
5.1 Material of measuring base plate
5.2 Length of the measuring base plate
5.3 Cryostat for the resistance R[2] measurement
6 Specimen preparation
7 Data acquisition
7.1 Resistance (R[1]) at room temperature
7.2 Resistance (R[2]) just above the superconducting
transition
7.3 Residual resistance ratio (RRR)
8 Accuracy and stability in the test method
8.1 Temperature
8.2 Voltage measurement
8.3 Current
9 Test report
9.1 Specimen
9.2 Report of RRR values
9.3 Report of test conditions
Annex A (informative) - Additional information relating to
measurement of RRR
Anenx ZA (normative) - Normative references to international
publications with their corresponding
European publications
Figures
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