Determining when fluid has stopped flowing within an element

Details Determining when fluid has stopped flowing within an element Determining when fluid has stopped flowing within an element

G - Physics

01

F

G01F 1/34 (2006.01) A61M 1/14 (2006.01) F04B 43/00 (2006.01) F04B 43/067 (2006.01) F04B 51/00 (2006.01) G01F 25/00 (2006.01)

Patent

CA 2336305

The time derivated pressure variation in a second fluid, separated from a first (13) by a pumping membrane (12), is measured (15) in response to energy (16, 17) applied in a time-varying manner to the second fluid. After low pass filtering, below a threshold, a stop is indicated.

La variation de pression dérivée en temps d'un second fluide, séparé d'un premier (13) par une membrane (12) de pompage, est mesurée (15) en réponse à l'énergie (16, 17) appliquée au second fluide de façon à varier dans le temps. L'obtention d'une valeur inférieure à un seuil après filtrage passe-bas indique une occlusion.

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