FLOW METER Russian patent published in 2007 - IPC G01L1/00 

FIELD: measuring technique.

SUBSTANCE: flow meter comprises device for measuring mean velocity of fluid flow that has blade, device for measuring the level of the fluid flow, lever with float, axles, sensors for measuring the angle of rotation of the blade and measuring the angle of float movement, and electronic unit for processing data. The blade and the lever with float are secured to the axles of their sliding bearings. The blade is mounted in the plane of the central longitudinal axis of the flow. The units for fastening the sliding bearing of the blade and lever with float are made for permitting rotation in the horizontal plane. The diameter of the float and the parameters of the blade depend on the width of the passage, mass of the float, mass of the lever, density of the fluid, mean flow velocity, depth of detachment of the float in calm water, and distance from the axle of the fastening of the blade to the bottom of the passage, and are determined from the formulae proposed.

EFFECT: enhanced precision and reliability.

4 cl, 2 dwg