Patent · US Active

Measuring system having a measuring transducer of vibration-type

US11073416B2 · kind B2 · utility

1Cited by

2References

31Claims

0Family size

Assignee

Endress+Hauser Flowtec AG · CH

Inventors

Wolfgang Drahm · Erding, DE
Hao Zhu · Freising, DE
Alfred Rieder · Landshut, DE
Michael Wiesmann · Freising, DE
Patrick Oudoire · Soultz, FR

Key dates

Filing date	Oct 26, 2017
Grant date	Jul 27, 2021
Priority date	—
Expiry date	Oct 31, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG01F1/8495
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A measuring system comprises: a measuring transducer; transmitter electronics; at least one measuring tube; and at least one oscillation exciter. The transmitter electronics delivers a driver signal for the at least one oscillation exciter, and for feeding electrical, excitation power into the at least one oscillation exciter. The driver signal, has a sinusoidal signal component which corresponds to an instantaneous eigenfrequency, and in which the at least one measuring tube can execute, or executes, eigenoscillations about a resting position. The eigenoscillations have an oscillation node and in the region of the wanted, oscillatory length exactly one oscillatory antinode. The driver signal has, a sinusoidal signal component with a signal frequency, which deviates from each instantaneous eigenfrequency of each natural mode of oscillation of the at least one measuring tube, in each case, by more than 1 Hz and/or by more than 1% of said eigenfrequency.

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