Diagnostic apparatus and methods for a coriolis flow meter

G - Physics – 01 – F

Patent

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G01F 1/84 (2006.01)

Patent

CA 2543262

A method for validating a flow calibration factor of a flow meter is provided according to an embodiment of the invention. The method for validating a flow calibration factor of a flow meter comprises determining an initial flexural stiffness of a component of the flow meter. The method for validating a flow calibration factor of a flow meter includes determining a current flexural stiffness of the component. The method for validating a flow calibration factor of a flow meter further includes comparing the initial flexural stiffness to the current flexural stiffness. The method for validating a flow calibration factor of a flow meter further includes detecting a calibration error condition responsive to comparing the initial flexural stiffness to the current flexural stiffness.

Selon un mode de réalisation, l'invention concerne une méthode de validation d'un facteur d'étalonnage pour l'écoulement. Cette méthode de validation d'un facteur d'étalonnage pour l'écoulement, d'un débitmètre, consiste à déterminer la rigidité en flexion initiale d'un composant du débitmètre. Cette méthode de validation d'un facteur d'étalonnage pour l'écoulement, d'un débitmètre, consiste à déterminer la rigidité en flexion du moment du composant. Elle consiste également à comparer la rigidité en flexion initiale à la rigidité en flexion du moment, et à détecter un état d'erreur d'étalonnage en réponse à la comparaison entre la rigidité en flexion initiale et la rigidité en flexion du moment.

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