Method and system of detecting liquid in an acoustic flow meter

G - Physics – 01 – F

Patent

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G01F 1/66 (2006.01)

Patent

CA 2721966

Detecting liquid in an acoustic flow meter. At least some of the illustrative embodiments are methods comprising flowing a gaseous substance through a central passage of a meter body, sending acoustic signals along respective chordal pathways across the central passage (none of the chordal pathways intersect a lower portion of the central passage where liquid, if present during flow of the gaseous substance, accumulates), calculating a flow velocity of the gaseous substance proximate to each chordal pathway based on transit times of the acoustic signals along the respective chordal pathways, and determining the presence of a liquid accumulated in the lower portion based on the flow velocity proximate to each chordal pathway.

La présente invention concerne la détection de liquide dans un débitmètre acoustique. Au moins certains des exemples de modes de réalisation sont des procédés comprenant les étapes consistant à : faire circuler une substance gazeuse dans un passage central dun compteur, envoyer des signaux acoustiques le long de chemins de corde respectifs à travers le passage central (aucun des trajets de corde ne coupe une partie inférieure du passage central où du liquide saccumule, sil y en a au cours de la circulation de la substance gazeuse), calculer une vitesse de circulation de la substance gazeuse à proximité de chaque trajet de corde sur la base de temps de séjour des signaux acoustiques le long des trajets de corde respectifs et déterminer la présence dun liquide accumulé dans la partie inférieure sur la base de la vitesse de circulation à proximité de chaque trajet de corde.

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