Device for determining and/or monitoring at least one process variable of a medium

Abstract

The present disclosure relates to a device for determining and/or monitoring at least one process variable of a medium comprising an electronics unit and a sensor unit having a mechanically oscillatable unit and at least a first tubular piezoelectric element. The device is embodied to excite the mechanically oscillatable unit using a first excitation signal, such that mechanical oscillations are executed in a first oscillation mode, and to receive the mechanical oscillations of the mechanically oscillatable unit in the first oscillation mode and to convert them into an electrical, received signal. The electronics unit is adapted to ascertain the at least one process variable from the received signal. And the mechanical, oscillatable unit includes in an end region at least a first cylindrical bore, in which the at least first piezoelectric element is at least partially inserted.

Dependencies are inferred from the claim text.