Measuring system for ascertaining a volume flow and/or a volume flow rate of a medium flowing in a pipeline

摘要: The measuring system comprises: a vibration element for guiding flowing medium and having lumen; element, which is adapted to be contacted, at least times, by part of the medium. Additionally, includes two oscillation exciters exciting resonant oscillations respective elements, mutually spaced sensors registering vibrations each generates an oscillatory signal dependent on as well one sensor generating, signal, has frequency corresponding frequency, element. Moreover, also comprises operating electronics, based phase difference, existing between signals measured value representing volume flow rate, respectively flow.