Flowmeter with pitot tube with average pressure

Details Flowmeter with pitot tube with average pressure Flowmeter with pitot tube with average pressure

G - Physics

01

F

G01F 1/88 (2006.01) G01F 1/46 (2006.01) G05D 7/06 (2006.01)

Patent

CA 2239497

A transmitter (10) in a process control system for measuring flow rate measures total pressure (PTOT) and differential pressure (h) of process fluid flowing through a process pipe. The static pressure (PSTAT) is determined based upon the total pressure (PTOT). The calculated static pressure is used to determine the fluid density (p) and the gas expansion factor (Y1) of the process fluid flowing in the pipe (12). This information is used to calculate flow rate (Q) of the process fluid.

Emetteur (10) d'un système de commande de traitement destiné à mesurer un débit qui mesure également la pression totale (PTOT) et la pression différentielle (h) d'un fluide de traitement s'écoulant dans un tuyau de traitement. La pression statique (PSTAT) est déterminée par rapport à la pression totale (PTOT). La pression statique calculée est utilisée pour déterminer la densité (p) et le facteur d'expansion des gaz (Y1) du fluide de traitement s'écoulant dans le tuyau (12). Ces informations sont utilisées pour calculer le débit (Q) du fluide de traitement.

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