A dual function flow measurement apparatus having an array...

G - Physics – 01 – F

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G01F 1/66 (2006.01) G01F 1/708 (2006.01) G01F 1/712 (2006.01) G01F 1/74 (2006.01)

Patent

CA 2532468

A dual function flow measurement apparatus is provided that combines the functionality of an apparatus that measures the speed of sound propagating through a fluid flowing within a pipe, and measures pressures disturbances (e.g. vortical disturbances or eddies) moving with a fluid to determine respective parameters of the flow propagating through a pipe. The apparatus includes a sensing device that includes an array of pressure sensors used to measure the acoustic and convective pressure variations in the flow to determine desired parameters. The measurement apparatus includes a processing unit the processes serially or in parallel the pressure signals provided by the sensing array to provide output signals indicative of a parameter of the fluid flow relating to the velocity of the flow and the speed of sound propagating through the flow, respectively.

L'invention concerne un appareil de mesure de débit à double fonction qui combine la fonctionnalité d'un appareil qui mesure la vitesse du son traversant un liquide circulant dans un tuyau, ainsi que les perturbations de pression (par exemple perturbations tourbillonnaires ou remous) se déplaçant avec un liquide afin de déterminer les paramètres respectifs du liquide se propageant dans un tuyau. Ledit appareil comporte un dispositif de détection qui comporte un réseau de capteurs de pression servant à mesurer les variations de pression acoustique et convective afin de déterminer les paramètres recherchés. L'appareil de mesure comporte une unité de traitement qui traite en série ou en parallèle les signaux de pression fournis par le réseau de détection afin de produire des signaux de sortie indiquant un paramètre du débit de liquide se rapportant à la vitesse du flux et à la vitesse du son se propageant dans le flux, respectivement.

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