DEVICE FOR MEASURING LIQUID FLOW RATE Russian patent published in 2017 - IPC G01F1/75 

FIELD: physics, measurement technology.

SUBSTANCE: invention relates to means of measuring flow rate of liquid media. The device for measuring liquid flow rate comprises an impeller with blades made of ferromagnetic material, placed in a pipe made of non-magnetic material, on the outer side of the pipe there is a signal pickup coil with a U-shaped core made of soft magnetic material, one lead of which is connected to the ground bus, and the other to a receiver, the output of which is connected to the input of a resolver, at the output of which is formed the output signal of the receiver, characterised by that a two-pole magnet is placed at the end of one of the knees of the U-shaped core made of soft magnetic material.

EFFECT: invention increases sensitivity, noise-immunity, accuracy and range of measured flow rates, provides simple and cheap implementation, as well as functional flexibility.

7 cl, 4 dwg