A Bridge for High-frequency Capacitance Scaling

Luca Callegaro, Jan Vejdelek

Abstract

A bridge, suitable for 1:1 and 10:1 ratio measurements of four terminal-pair impedances to frequencies up to 5 MHz, has been constructed and is presently under testing. The purpose of the bridge is to extend the Italian national standard of capacitance toward higher frequencies; however, the bridge will be employed for resistance comparisons also. Expected best uncertainty is in the order of a few parts in 10-5 for 10 nF - 1 nF ratio measurements, at 1 MHz.

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IMEKO-TC4-2005-025.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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