Development and uncertainty estimation of bridges for the link between capacitance and the QHR at 1 kHz

Abstract

Capacitance standard derived from the QHR has been established at ETL. The chain of measurements makes it possible to link capacitance to the QHR at 1 kHz by using the multi-frequency quadrature bridge. The measurement uncertainties in the chain, which comprises resistance bridge, quadrature bridge and capacitance bridge are estimated. 

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