The Coriolis sass flowaeter is modelled using the theory of vibratingbeams. Tube deformations for the fundamental mode and the next two nodesof natural (out-of-plane) vibration are worked out for many tubegeometries. An improved model taking into account the effects of elasticboundary conditions and added masses of the electromagnetic drive anddetectors is also discussed. A method for predicting the optimum detectionpositions is suggested in relation to signal-to-noise ratio. In addition,an argument for prediction of the effects of a dilute suspension of smallbubbles or particles in the fluid is presented. Finally, experimentalstudies are conducted in order to demonstrate the validity of thetheoretical models.
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