Method of mass flow measurement by the coriolis principle and mass flow meter operating by the coriolis principle
US4949583A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1988 |
| Grant date | Aug 21, 1990 |
| Priority date | — |
| Expiry date | Nov 17, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/849
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In the method for mass flow measurement by the Coriolis principle a fluid-traversed elastically deformable measuring tube is periodically deflected. As a measure of the mass flow phase displacements are measured between deflections of portions of the measuring tube wall which are arranged differently in the flow direction. For this purpose a periodic deformation of the cross-section of the measuring tube is effected in such a manner that portions of the measuring tube wall lying diametrically opposite each other are deflected in each case through about the same distance in opposite or the same direction transversely of the flow direction of the fluid. This method can be carried out with a simply constructed mass flow meter in the operation of which a wandering of the center of gravity of the meter is substantially avoided and which is also suitable for large nominal widths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.