Precise resistance ratio measurements using a superconducting dc ratio transformer
- 1 December 1973
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 44 (12) , 1700-1702
- https://doi.org/10.1063/1.1686036
Abstract
The application of a superconducting dc ratio transformer to precise resistance ratio measurement at temperatures below 2.2 K is described. Resistors of Si–Cu alloy have been tested for stability under thermal cycling and their load coefficient has been measured. The load coefficient measurements lead to a determination of the combined thermal conductance of the wire insulation and Kapitza thermal boundary conductance.Keywords
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