Recent determinations of R/sub H/ in terms of Omega /sub 69-BI

A system based on a cryogenic current comparator is used to measure the quantized Hall resistance R/sub H/ in terms of Omega /sub 69-BI/, the Bureau International des Poids et Mesures (BIPM) representation of the ohm, with an uncertainty of 1.5*10/sup -8/. This measurement system and the former pote...

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Veröffentlicht in:	IEEE transactions on instrumentation and measurement 1989-04, Vol.38 (2), p.256-259
Hauptverfasser:	Delahaye, F., Satrapinsky, A., Witt, T.J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Bridge circuits Current measurement Electrical resistance measurement Petroleum Platinum Q measurement Resistors Switches Temperature measurement Thermal resistance
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