Loading patent…
AssigneeEndress + Hauser GmbH + Co. KG
InventorsTobias Brengartner, Manuel Sautermeister
Estimating the term…
The present disclosure includes a method for monitoring the condition of a component of an electromechanical resonator having a piezoelectrical element which can be excited to mechanical vibration using an electrical excitation signal and the mechanical vibrations of which can be received in the form of an incoming electrical signal. The method steps performed at a first point and a second point in time, including determining an amplification factor of the electromechanical resonator, determining a mechanical quality resonator, and establishing an electromechanical efficiency resonator at least from the amplification factor and the mechanical quality. A change over time in the electromechanical efficiency is calculated from the first point to the second point in time, the change over time in the electromechanical efficiency is compared with a pre-definable threshold, and a condition indicator is determined from the comparison.
A method for monitoring a condition of at least one component of an electromechanical resonator including a piezoelectric element that can be excited to mechanical vibration by an electrical excitation signal, wherein the mechanical vibration can be received in the form of an electrical incoming signal, the method comprising the following steps:
A device for determining and/or monitoring at least one process variable of a medium, the device comprising:
Dependencies are inferred from the claim text.