Fig. 4: Noise analysis.
From: A primary quantum current standard based on the Josephson and the quantum Hall effects
Experimental uncertainties, \({u}_{\exp }^{{{{\rm{A}}}}}\), determined from all data for a normalized measurement time (τm = 16τ0 ~ 18 min) and the I± measurement protocol, as a function of 1/V2 (a) and 1/N1I1 (b). Calculated uncertainties, \({u}_{{{{\rm{calc}}}}}^{{{{\rm{A}}}}}\) (cross). Functions 8.8 × 10−10/V2 (dash-dotted line in a) and 1.6 × 10−11/(N1I1) (dash-line in b) represent \({u}_{{{{\rm{calc}}}}}^{{{{\rm{A}}}}}({\tau }_{m})\) calculated for Sϕ = 0 and SV = 0, respectively.
