Noninvasive fluid density and viscosity measurement

Details Noninvasive fluid density and viscosity measurement Noninvasive fluid density and viscosity measurement

G - Physics

01

N

G01N 9/00 (2006.01) G01N 11/16 (2006.01)

Patent

CA 2700851

The noninvasively measurement of the density and viscosity of static or flowing fluids in a section of pipe such that the pipe performs as the sensing apparatus, is described. Measurement of a suitable structural vibration resonance frequency of the pipe and the width of this resonance permits the density and viscosity to be determined, respectively. The viscosity may also be measured by monitoring the decay in time of a vibration resonance in the pipe.

L'invention porte sur la mesure non invasive de la densité et de la viscosité de fluides statiques ou s'écoulant dans une section de tuyau, de telle sorte que le tuyau sert d'appareil de détection. La mesure de la fréquence de résonance de vibration structurelle appropriée du tuyau et de la largeur de cette résonance permet de déterminer la densité et la viscosité, respectivement. La viscosité peut également être mesurée par surveillance de la désintégration dans le temps de la résonance de vibration dans le tuyau.

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