Apparatus and method for detecting vibrations, e.g. in a...

G - Physics – 01 – F

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G01F 1/84 (2006.01) G01H 1/12 (2006.01)

Patent

CA 2372444

A process parameter associated with a material contained in a vibrating structure (3) is estimated. A plurality of motion signals (605) representing motion at a plurality of locations (5A-5D) of the vibrating structure are received. The received plurality of motion signals (605) are force filtered (1020) with a force filter (610) to produce a force-filtered motion signal (615) that discriminates motion attributable to a force of interest among a plurality of forces acting on the vibrating structure. A process parameter (625) associated with the material contained in the vibrating structure (3) is estimated from the force filtered motion signal.

Un paramètre de fonctionnement associé à un matériau contenu dans une structure vibrante (3) est évalué. Plusieurs signaux de mouvement (605) représentant le mouvement au niveau de plusieurs endroits (5A-5D) de la structure vibrante sont reçus. Lesdits signaux de mouvement (605) sont soumis à un filtrage de forces (1020) au moyen d'un filtre de forces (610), de manière qu'un signal de mouvement à forces filtrées (615) qui distingue le mouvement dû à une force à détecter parmi plusieurs forces agissant sur la structure vibrante. Un paramètre de fonctionnement (625) associé au matériau contenu dans la structure vibrante est évalué à partir du signal de mouvement à forces filtrées.

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