Method, system and storage medium for performing online...

G - Physics – 05 – B

Patent

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G05B 23/02 (2006.01)

Patent

CA 2515318

Methods and systems for performing online valve diagnostics. Valve characteristics such as step response, friction and spring range are determined while the valve is operating in a process without intervention by a controller deriving the valve diagnostics. Valve information is obtained while the valve operates in response to a control signal controlling a process while the valve operates through a series of gradual movements. Valve characteristics are then determined from the valve information.

L'invention concerne des procédés et des systèmes permettant d'établir un diagnostic de soupape en ligne. Les caractéristiques de soupape de type réponse indicielle, frottement et amplitude de ressort sont déterminées pendant le fonctionnement de la soupape, sans interruption, au moyen d'un contrôleur qui relève les caractéristiques de la soupape. Les informations associées à la soupape sont obtenues lors du fonctionnement de la soupape en réponse à un signal de commande commandant un procédé pendant le fonctionnement de la soupape par une série de mouvements progressifs. Les caractéristiques de soupape sont ensuite déterminées à partir des informations associées à la soupape.

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