In-flow determination of left and right eigenvectors in a...

Details In-flow determination of left and right eigenvectors in a... In-flow determination of left and right eigenvectors in a...

G - Physics

01

F

G01F 1/84 (2006.01) G01F 25/00 (2006.01)

Patent

CA 2581107

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, first one (204), then the second (206), of the two drivers is disabled, allowing measurements that enable the determination of the relative phase of the left eigenvector (208) for the vibrating conduit.

L'invention porte sur un procédé et sur un appareil qui permettent le calcul périodique de la phase relative du vecteur propre gauche d'un conduit vibrant. En fonctionnement normal, deux circuits sont utilisés en tandem pour exciter le mode principal de flexion du conduit (202). Périodiquement, le premier (204), puis le second (206) circuit est désactivé, ce qui permet d'effectuer des mesures pour déterminer la phase relative du vecteur propre gauche (208) du conduit vibrant.

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