Thermal dispersion flow meter with chronometric monitor for...

G - Physics – 01 – M

Patent

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G01M 3/04 (2006.01)

Patent

CA 2598266

A thermal dispersion flow meter with chronometric monitor for fluid leak detection includes an ambient temperature RTD sensor and a flow rate RTD sensor which are configured to sense the temperature of a fluid in a conduit, and then monitor the flow of that fluid through the conduit. The fluid flow RTD sensor is incorporated into a Wheatstone bridge circuit which is used to provide increased sensitivity to the outputs of the RTD sensors. Based upon the ambient temperature sensor readings, the flow rate RTD sensor may be adjusted to optimize the operation of the system to detect leaks, and on certain conditions, a controller may close a supply line valve to avoid flooding of a structure.

L'invention porte sur un débitmètre à dispersion thermique à suiveur chronométrique pour la détection de fuites comprenant un thermomètre à résistance (RTD) tout température ambiante et un débitmètre RTD conçus pour détecter la température d'un fluide circulant dans un conduit et mesurer l'écoulement du fluide dans le conduit. Le débitmètre RTD est incorporé à un pont de Wheatstone qui sert à accroître la sensibilité des signaux des détecteurs RTD. En fonction des mesures de la température ambiante, le débitmètre RTD peut être ajusté pour optimiser le fonctionnement du système de détection des fuites. Dans certaines conditions, on peut utiliser un contrôleur fermant une vanne de la conduite d'alimentation pour éviter d'inonder la structure.

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