Patent · US Active

Method for operating a resonant measurement system

US9207212B2 · kind B2 · utility

2Cited by

5References

8Claims

0Family size

Assignee

KROHNE Messtechnik GmbH · DE

Inventors

Kourosh Kolahi · Duisburg, DE
Ralf Storm · Essen, DE
Andreas Poremba

Key dates

Filing date	Jun 18, 2013
Grant date	Dec 8, 2015
Priority date	—
Expiry date	Jun 18, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG01F1/8436
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Method for operating a resonant measurement system, especially a Coriolis mass flow meter, so as to be excitable in a linear operating range, the driving terminal current triggered by an electric excitation signal and the driving terminal voltage of the electromagnetic drive triggered by the electric excitation signal are measured. The driving power is determined from the driving terminal current and the driving terminal voltage, and if the driving terminal current exceeds a given maximum driving terminal current, and/or if the driving terminal voltage exceeds a given maximum driving terminal voltage and/or if the driving power exceeds a given maximum driving power, the electric excitation signal is limited to a threshold value such that the driving terminal current remains below the given maximum driving terminal current, and/or the driving terminal voltage remains below the given maximum driving terminal voltage, and/or the driving power remains below the maximum driving power.

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