Process and apparatus for ultrasound flow rate measurement

Details Process and apparatus for ultrasound flow rate measurement Process and apparatus for ultrasound flow rate measurement

G - Physics

01

F

G01F 1/66 (2006.01)

Patent

CA 2209789

The invention concerns a method and a device for ultrasound measurement of the rate of flow of a flowing medium with a measuring tube, with at least two pairs of ultrasound transducers arranged on the measuring tube, each forming a measuring path with a transducer determining the velocities of the medium along the measuring paths from the signals of the pairs of ultrasound transducers and with an adder determining the rate of flow of the medium from the velocities of the medium along the measuring paths. The method and device are designed with a Reynolds' number meter that determines the Reynolds' number continuously and a flow corrector connected to the adder and the Reynolds' number meter.

L'invention concerne un procédé et un dispositif de mesure par ultrasons du débit de milieux en écoulement. Sur un tube de mesure (1) sont montées au moins deux paires de transducteurs à ultrasons qui forment chacune une voie de mesure (M1, M2, M3, M4, M5). Un transducteur (2) détermine à partir des signaux émis par les paires de transducteurs à ultrasons la vitesse du milieu le long des voies de mesure (M1, M2, M3, M4, M5) et un totaliseur (3) détermine le débit du milieu à partir de la vitesse du milieu le long des voies de mesure (M1, M2, M3, M4, M5). Selon l'invention, ce procédé et ce dispositif sont améliorés en ce qu'un dispositif de mesure (5) du nombre de Reynolds détermine en continu le nombre de Reynolds et en ce qu'un correcteur de débit (6) est relié au totaliseur (3) et au dispositif de mesure (5) du nombre de Reynolds.

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