Friction flowmeter

Details Friction flowmeter Friction flowmeter

G - Physics

01

F

G01F 1/50 (2006.01) G01F 1/34 (2006.01)

Patent

CA 2317445

A pressure transmitter (144) produces signals indicative of a flow in a pipe (132, 536, 584, 608). The transmitter (144) has a pressure sensor (252) that is fluidly coupled to two ports (136, 138) in the pipe, and the pipe has a substantially constant cross section between the two ports. Aspects of the invention include a circuit (280, 282) coupled to the pressure sensor that produces a digital value related to the fluid flow as a function of the pressure difference between the two ports.

Un transmetteur de pression (144) produit des signaux représentatifs du débit dans un conduit (132, 536, 584, 608). Ce transmetteur (144) comporte un capteur de pression (252) qui est en communication fluidique avec deux orifices d'accès (136, 138) ménagés dans le conduit, la section transversale du conduit entre ces deux orifices ayant une aire sensiblement constante. Le dispositif de cette invention comporte un circuit (280, 282) couplé au capteur de pression et produisant une valeur numérique relative au débit du fluide qui est fonction de la différence de pression entre les deux orifices.

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