A FLOW DEVICE AND METHOD FOR OPERATING A FLOW DEVICE

摘要

The present invention relates to flow devices that measure a characteristic of a flowing substance and methods for operating flow devices. In one embodiment, a drive is provided that receives a first signal for vibrating at least one conduit at a resonance frequency and a second signal for vibrating the at least one conduit at a frequency that is different than the resonance frequency. One or more electronics that generate the first and second signals, receive a pick-off signal from a pick-off, and measure changes in a time shift between the second signal frequency applied by the drive and the second signal frequency detected by the pick-off.