FIELD: measuring technologies, possible use for measuring flow and amount of liquid or gas in large diameter pipelines, using, for example, nuclear magnetic resonance flow meters.
SUBSTANCE: in accordance to method, in even temporal intervals on measuring portion with laminar flow mode in section of flow a limit of separation of two zones is organized, each one of which has normalized value of sign differentiating between them. Integrated value of signal is detected in volume of integration detector lower along flow and active value of average speed of flow is calculated by length of base and time of its passing by flow for next determining of flow. Time of passing of base by flow is found using a relation of amplitudes of signals of serial selections, performed synchronously with moments of organization of zone division boundary.
EFFECT: increased flow measurement precision.
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