Coriolis mass flow measuring device
US7181982B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2004 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Aug 9, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F15/024
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A Coriolis mass-flow/density meter includes at least one measuring tube through which a two, or more, phase medium during operation. A support means of the Coriolis mass-flow/density meter is fixed to an inlet end and an outlet end of the measuring tube and thus holds the tube such that it can oscillate. During operation, the measuring tube is made to oscillate with mechanical oscillations, especially bending oscillations, by means of an exciter arrangement. Additionally, the Coriolis mass-flow/density meter includes means for producing measurement signals (xs1, xs2) representing inlet end and outlet end oscillations of the measuring tube. An evaluation electronics produces an intermediate value (X′m) derived from the measurement signals (x1, xs2) and representing a provisionally determined mass flow rate. The evaluation electronics also produces a second intermediate value (X2) derived from the measurement signals (xs1, xs2), especially from a second measured value (Xρ) representing a density of the medium and likewise produced in the evaluation electronics. The second intermediate value (X2) represents a measure for an amount of a phase of the medium. Using the intermediate value…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.