Apparatus and method for measuring a fluid flow parameter...

G - Physics – 01 – F

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

Patent

CA 2669292

A method and apparatus for measuring at least one parameter of a fluid flowing through an internal passage of an elongated body is provided. The internal passage is disposed between a first wall and a second wall, and the first wall and the second wall each include an interior surface and an exterior surface. The method includes the steps of providing an array of at least two ultrasonic sensor units, operating the sensor units to transmit ultrasonic signals at one or more frequencies substantially coincident with at least one frequency at which the transmitted ultrasonic signals resonate within the first wall, receiving the ultrasonic signals with the sensor units, and processing the received ultrasonic signals to measure the at least one parameter of fluid flow within the internal passage.

Procédé et dispositif de mesure d'au moins un paramètre de fluide s'écoulant dans un passage interne de corps allongé. Ledit passage se trouve entre une première paroi et une seconde paroi, lesquelles comportent une surface interne et une surface externe. Le procédé comprend les étapes suivantes: fourniture de réseau d'au moins deux unités de capteurs ultrasonores, exploitation des unités pour la transmission de signaux ultrasonores à une ou plusieurs fréquences qui coïncident sensiblement avec au moins une fréquence à laquelle les signaux ainsi transmis entre en résonance dans la première paroi, réception de ces signaux avec les unités de capteurs et traitement des signaux reçus pour mesurer le ou les paramètres de flux de fluide dans le passage interne.

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