EFFECT OF DETECTOR MASSES ON CALIBRATION OF CORIOLIS FLOWMETERS

Detectors are included in the analysis of Coriolis mass flowmeters wit h straight vibrating pipe segments. The effect of the detector masses is worked out on the one hand by perturbation methods supported by com puter algebra and on the other by the finite element method. The predi ctions of both methods agree almost perfectly. They show that care has to be taken in choosing the position of the detectors, because this p osition may have strong implications for the accuracy to which the cal ibration of the instrument remains independent of the fluid density.