STABILITY IMPROVEMENT IN A CORIOLIS MAXIMUM

摘要

An optimized Coriolis mass flow meter (140) is disclosed which comprises a pair of sensor means (118) mounted on a flow conduit (112) on opposite sides of driver means (114) for monitoring the oscillatory motion of the conduit (112). In order to improve stability to excitations caused by external influences and to maximize sensitivity, each sensor means (118) is mounted as close as possible to a first and a second node, or coincident with both, said frist node being a node of a first vibration mode and said second node being a node of a second vibration mode. The modes are selected from among defined modes on the basis of a modal analysis to locate the nodes for each mode.