Analysis of Liquid Quantity Measurement in Loading/Unloading Processes in Cylindrical Tanks

Tanks, as instruments in oil and its product’s amount measurement system chain, must be regularly maintained metrologically inspected, they significantly contribute to uncertainty. However, when measuring a change the of stored material (i.e., transfer), uncertainty becomes highly dependent not only on mass transaction but also initial liquid level tank. This paper provides modeling uncertainties system, which involves tanks, oil, product loading/unloading processes. It is shown that accuracy volume/mass depends tank calibration table other used at moment measurement. The relative linearly fill present time nonlinearly quantity.