IN FLOW DETERMINATION OF LEFT AND RIGHT EIGENVECTORS IN A CORIOLIS FLOWMETER

摘要

A method and apparatus is disclosed that enables the periodic calculation of the relative phase of the left eigenvector for a vibrating conduit. During normal operation, two drivers are used in tandem to excite the main bending mode of the conduit (202). Periodically, firs one (204), then the second (206), of the two drivers is disabled, allowing measurements that enable the determination of the relative phase of die left eigenvector (208) for the vibrating conduit.