FIELD: physics, measurements.
SUBSTANCE: electronic metre (20) includes interface (201) for reception of oscillating response of flowing substance that comprises at least the first signal of detector and the second signal of detector, and system (203) of processing that communicates to interface (201). System (203) of processing is intended for reception of oscillating response from interface (201), generation of ninety-degree phase shift from the first signal of detector and generation of at least one parametre of flow with application of at least the first signal of detector and ninety-degree phase shift, comparison of at least one flow parametres with at least one set of parametres that define abnormality, detection of shift in oscillating response, if at least one flow parametre is within the limits of set of parametres that determine abnormality, and indication of abnormality mode (for instance, air bubbles, two-phase or multi-phase flow) as a result of detection.
EFFECT: provision of possibility to detect any abnormalities in flowing substance in online mode due to application of fast frequency and phase difference determination by signals of detectors.
45 cl, 20 dwg
