Patent · US Expired

Mass flow meter

US5253533A · kind A · utility

34Cited by

11References

8Claims

0Family size

Assignee

Krohne Messtechnik Massametron GmbH & Co. · DE

Inventors

Son H. Lam · Puyallup, US
Herbert Christ · Reutlingen, DE
Rolf Heisig · Weilerswist, DE

Key dates

Filing date	Jul 26, 1991
Grant date	Oct 19, 1993
Priority date	—
Expiry date	Jul 26, 2011

Classification

Technology area (CPC G)Physics
CPC primaryG01F1/849
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A mass flow meter for flow media which works primarily on the Coriolis Principle has a pipe inlet, a straight pipe carrying the flow medium, a pipe outlet, an oscillation generator operating on the pipe and two transducers detecting preferably Coriolis forces and/or Coriolis oscillations affecting Coriolis forces. The flow meter has a relatively low natural frequency at a certain layout length or a relatively short layout length at a certain natural frequency, and in this way, the oscillation generator engages the pipe via an articulated arm so that the conduit is excited to torsional and bending vibrations.

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