NUCLEAR-MAGNETIC FLOWMETRE AND METHOD OF NUCLEAR-MAGNETIC FLOWMETRE OPERATION Russian patent published in 2017 - IPC G01F1/716 

FIELD: measuring equipment.

SUBSTANCE: nuclear-magnetic flowmetre (1) is described and presented for measuring the flow rate of a multiphase medium (4) flowing through a measuring tube (3) with a nuclear-magnetic measuring device (2), the nuclear-magnetic measuring device (2) is located around the measuring tube (3). According to the invention, in addition to the nuclear-magnetic measuring device (2), another measuring device is provided which implements another measurement principle in the described and presented embodiment - a differential pressure flowmetre (5). The differential pressure flowmetre (5) is configured to measure the differential pressure of the medium (4) in the measuring tube (3) and a pressure sensor (8a, 8b) is provided correspondingly at least at two different measuring points (6a, 6b) in the longitudinal direction (7) of the measuring tube (3).

EFFECT: improved accuracy of measuring the flow rate of a nuclear-magnetic flowmetre for the gaseous phase.

20 cl, 2 dwg