Propane tank level monitoring device and system

Details Propane tank level monitoring device and system Propane tank level monitoring device and system

G - Physics

01

F

G01F 1/56 (2006.01) G01F 1/20 (2006.01) G01F 1/28 (2006.01)

Patent

CA 2443316

An in-line gas flow rate sensor includes a movable flow orifice and a fixed flow restrictor adjacent the flow orifice for changing the gas flow through the flow orifice. The flow orifice and the flow restrictor are formed so that each uniform increment of flow orifice movement provides a constaant percent of flow change through the flow orifice. A magnet fixed to the movable flow orifice provides changing magnetic flux corresponding to each uniform increment of flow restrictor movement. A magnetic flux sensor responds to the changing magnetic flux and provides an output corresponding to a constant percent of flow rate changes.

L'invention concerne un capteur de débit de gaz en ligne, composé d'un orifice d'écoulement mobile et d'un restricteur d'écoulement fixe, adjacent à l'orifice d'écoulement, qui sert à varier l'écoulement gazeux à travers l'orifice d'écoulement. L'orifice d'écoulement et le restricteur d'écoulement sont formés de façon à ce que chaque incrément uniforme du mouvement de l'orifice d'écoulement produise un pourcentage constant de changement d'écoulement à travers l'orifice d'écoulement. Un aimant fixé à l'orifice d'écoulement mobile permet des changements de flux magnétique correspondant à chaque incrément uniforme de mouvement du restricteur d'écoulement. Un capteur de flux magnétique réagit aux changements de flux magnétique et fournit une sortie correspondant à un pourcentage constant de changements de débit.

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