Patent · US Active

Vibronic sensor with interference compensation

US10928240B2 · kind B2 · utility

1Cited by

0References

16Claims

0Family size

Assignee

Endress+Hauser SE+Co. KG · DE

Inventors

Benjamin Monse · Endingen am Kaiserstuhl, DE
Michael Dötsch · Lindenberg im Allgäu, DE
Tobias Weber · Verl, DE

Key dates

Filing date	Dec 1, 2017
Grant date	Feb 23, 2021
Priority date	—
Expiry date	Mar 16, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG01N2009/006
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The present disclosure relates to a method for determining a process variable of a medium by means of a vibronic sensor. In a first operating mode, an oscillatable unit is excited by a first electrical excitation signal, such that it executes mechanical oscillations, and the mechanical oscillations of the mechanically oscillatable unit are received and converted into a first electrical, received signal having a first frequency. Furthermore, the first received signal is evaluated relative to the process variable. In a second operating mode, mechanical oscillations of the oscillatable unit are received and converted into a second electrical, received signal, wherein a second frequency of the second electrical, received signal is ascertained, and wherein the second frequency is associated with a first disturbing influence for the vibronic sensor. Furthermore, the present disclosure relates to an apparatus, which is suitable for performing a method of the present disclosure.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.