Vibronic measuring device for determining and monitoring process variable of liquid medium in container, has rule-evaluation unit which controls vibration stimulation process to suppress the frequency of vibration in reception signal

摘要

The vibronic measuring device (1) has a piezoelectric drive-reception unit (12) for exciting the mechanical vibrations of mechanical oscillating unit (11) by an electrical excitation signal, and receiving and converting mechanical vibrations into an electrical reception signal regarding the process variable. The rule-evaluation unit (13) is provided for controlling the vibration stimulation process so as to suppress the frequency of vibration in the reception signal. Independent claims are included for the following: (1) method for operating vibronic measuring device; and (2) system for determining and monitoring process variable.