Uncertainty budget for the resistor 10 MΩ.
|Probability distribution||Divider||Uncertainty contribution by voltage, Ω||Uncertainty contribution by current, Ω|
|Repeatability (Type A)||Normal||1||59||144|
|Applied signal calibration (B1)||Normal||2||0.6||0.3|
|Calibration of Rs (B2)||Normal||2||45||45|
|Drift of Rs (B3)||Rectangular||0.3||0.3|
|Temperature coefficient of Rs (B4)||Rectangular||12||12|
|DMM ratio accuracy (B5)||Normal||2||1||1|
|Combined standard uncertainty (Uc )||± 75 Ω||± 151 Ω|
|Effective degrees of freedom||∞||∞|
|Expanded uncertainty (U exp.) at confidence level 95%, (k = 2):||± 150 Ω = 15 μΩ/Ω||± 302 Ω = 30.2 μΩ/Ω|
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