Precise resistance ratio measurements using a superconducting dc ratio transformer
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 le...
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| Veröffentlicht in: | Review of scientific instruments 1973-12, Vol.44 (12), p.1700-1702 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | 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. |
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| ISSN: | 0034-6748 1089-7623 |
| DOI: | 10.1063/1.1686036 |