Correction value determining method for correcting viscosity limited systematic measurement error, involves determining function value depending on relative difference, of preset correction value function or preset correction value table

摘要

The method involves determining values e.g. periodic time of resonance frequency or uncorrected density of fluid, during vibrating a flexural resonator in respective resonance frequencies. A relative difference is formed subsequent to determination of the values by subtracting the values from each other. A subtraction result is divided by one of the values. A function value depending on the relative difference, of preset correction value function or preset correction value table is determined to determine a correction value. Independent claims are also included for the following: (1) a computer program comprising instructions for determining correction value for correcting viscosity limited systematic measurement error (2) a data carrier comprising instructions for determining correction value for correcting viscosity limited systematic measurement error (3) a device for determining correct density of fluid.