Semiautomatic bridge for high‐precision dc resistance measurements on pure metals at low temperatures

Semiautomatic bridge for high‐precision dc resistance measurements on pure metals at low temperatures

A self‐balancing bridge system with a dc current comparator and a superconducting flux‐gated galvanometer is described. The bridge is capable of measuring small resistances (10−4–10−7 Ω) at liquid helium temperatures with an accuracy of 1 ppm.

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Veröffentlicht in:Review of scientific instruments 1979-02, Vol.50 (2), p.161-164
Hauptverfasser: van Kempen, H., Neyenhuisen, H. W., Ribot, J. H. J. M.
Format: Artikel
Sprache:eng
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Zusammenfassung:A self‐balancing bridge system with a dc current comparator and a superconducting flux‐gated galvanometer is described. The bridge is capable of measuring small resistances (10−4–10−7 Ω) at liquid helium temperatures with an accuracy of 1 ppm.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.1135798