Automated system for resistance and critical current measurements

An apparatus is described for measuring the temperature and magnetic field dependencies of the resistance and critical current of high‐temperature superconductors. The automated setup together with a set of inserts forms a universal system allowing for fast sample selection as well as for accurate c...

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Veröffentlicht in:	Review of scientific instruments 1991-07, Vol.62 (7), p.1813-1818
Hauptverfasser:	Wnuk, J. J., Eggenkamp, P. J. T., van der Linden, P. J. E., van der Steen, H. J. L.
Format:	Artikel
Sprache:	eng
Schlagworte:	360204 - Ceramics, Cermets, & Refractories- Physical Properties 440800 - Miscellaneous Instrumentation- (1990-) AUTOMATION CRITICAL CURRENT CRYOGENICS CURRENTS ELECTRIC CONDUCTIVITY ELECTRIC CURRENTS ELECTRICAL PROPERTIES Exact sciences and technology HIGH-TC SUPERCONDUCTORS LABORATORY EQUIPMENT MAGNETORESISTANCE MATERIALS SCIENCE MEASURING METHODS Metrology, measurements and laboratory procedures OTHER INSTRUMENTATION PHYSICAL PROPERTIES Physics SUPERCONDUCTORS TEMPERATURE DEPENDENCE
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Beschreibung
Zusammenfassung:	An apparatus is described for measuring the temperature and magnetic field dependencies of the resistance and critical current of high‐temperature superconductors. The automated setup together with a set of inserts forms a universal system allowing for fast sample selection as well as for accurate complementary measurements at temperatures from 4.2 to 300 K and in high magnetic fields up to 30 T. Design details and low resistance measuring algorithm are presented and system peformance is discussed.
ISSN:	0034-6748 1089-7623
DOI:	10.1063/1.1142426