TRACEABILITY CHAIN OF THE CAPACITANCE UNIT TO QUANTUM HALL EFFECT AT INMETRO - FOUR-TERMINAL COAXIAL BRIDGE
Renata Barros e Vasconcellos, Luiz Macoto Ogino
Abstract:
This paper describes the development of a four-terminal coaxial bridge, part of the traceability chain of the capacitance unit to the quantum Hall effect, in construction at Inmetro. This bridge will also be used to calibrate AC resistance and high-value capacitance standards. Here we describe the final construction stages and preliminary measurements of the four-terminal coaxial bridge. We also describe the bridge main transformers, grounding scheme, and AC resistance standards.
Keywords:
electrical metrology, coaxial current bridges, impedance measurements
Download:
IMEKO-WC-2009-TC4-097.pdf
DOI:
-
Event details
Event name:
XIX IMEKO World Congress
Title:

Fundamental and Applied Metrology

Place:
Lisbon, PORTUGAL
Time:
06 September 2009 - 11 September 2009
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