16th International Congress of Metrology 2013
DOI: 10.1051/metrology/201311014
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Wide frequency range quadrature bridge comparator Pont

Abstract: Abstract. The quadrature bridge for comparison of the impedance standards in wide frequency and dynamic range was developed. The digital phase inversion of the operating signal is the single internal standard of this bridge. Technically bridge is based on the digital synthesizers of the sinusoidal signals, which are used as sources of quadrature voltages, supplying the standards to be compared. The appropriate algorithm of measurement eliminates the influence of the synthesizer's uncertainty on the results of … Show more

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Cited by 2 publications
(1 citation statement)
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“…Formulas (21) and (22) show that the additive uncertainty ∆ a caused by the relative noise (δ n ¼ Δ=U 0 ) in both cases is the same. But these formulas also show that due to the variational calibration, the multiplicative random uncertainty δ m increases 1.6 times.…”
Section: Metrologymentioning
confidence: 99%
“…Formulas (21) and (22) show that the additive uncertainty ∆ a caused by the relative noise (δ n ¼ Δ=U 0 ) in both cases is the same. But these formulas also show that due to the variational calibration, the multiplicative random uncertainty δ m increases 1.6 times.…”
Section: Metrologymentioning
confidence: 99%