Measuring system for determining volumetric flow during measuring interval of total flowed volume of flowing medium, particularly liquid or gas, has vibration element for guiding flowing portion of medium, where vibration element has lumen

摘要

The measuring system has a vibration element (V1) for guiding flowing portion of the medium, where vibration element has a lumen. A vibration exciter (E1) is provided for the excitation of vibrations of the vibration element such that the vibration element executes partially, resonant vibrations, such as mechanical vibration with a resonance frequency depending on the density of the medium. A vibration sensor (S1) detects the vibration, particularly resonant vibration of the vibration element. The vibration sensor is adapted to generate a vibration signal depending on vibration of the vibration element. The vibration signal has signal frequency corresponding to the resonant frequency.