A FOUR TERMINAL-PAIR COAXIAL IMPEDANCE BRIDGE CONSTRUCTED AT INMETRO

Renata T. de Barros e Vasconcellos, Luiz Macoto Ogino

Abstract

This paper describes the final construction stage and preliminary measurements results of a low-frequency four terminal-pair coaxial impedance bridge, part of the traceability chain of the capacitance unit to the quantum Hall effect, constructed at Inmetro. The coaxial bridge is a complex system, with several technical advantages, as highstability and very low-uncertainty.

Keywords

Coaxial current bridges, electrical metrology, impedance measurements

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IMEKO-TC4-2011-023.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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