Apparatus and method for compensating mass flow rate of a...

G - Physics – 01 – F

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G01F 1/84 (2006.01)

Patent

CA 2424348

An apparatus (150) and method (300) for determining a density compensated flow rate of a material flowing through a vibrating conduit. Signals are received from sensors (105, 105') affixed to the vibrating conduit (103A, 103B). An uncompensated flow rate of said material is then calculated from the signals. A density compensation factor is then determined from the uncom-pensated flow rate and non-linear information relating density to errors in flow rate. The density compensated flow rate is then determined by applying the density compensation factor to the uncompensated flow rate.

La présente invention concerne un dispositif (150) et un procédé (300) permettant de déterminer le débit à densité compensée d'une matière s'écoulant à travers une canalisation vibrante. Les signaux sont transmis par des capteurs (105, 105') fixés sur la canalisation vibrante (103A, 103B). Un débit non compensé de cette matière est alors calculé à partir des signaux. Un facteur de compensation de densité est alors déterminé à partir du débit non compensé et des informations non linéaires reliant la densité aux défauts de débit. Le débit à densité compensée est ensuite déterminé par application du facteur de compensation de densité au débit non compensé.

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