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
Hauptverfasser: Harvey, I. K., Collins, H. C.
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container_issue 12
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container_title Review of scientific instruments
container_volume 44
creator Harvey, I. K.
Collins, H. C.
description 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.
doi_str_mv 10.1063/1.1686036
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title Precise resistance ratio measurements using a superconducting dc ratio transformer
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