Flow measurement apparatus
US7481118B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 26, 2006 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Jan 26, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/74
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for obtaining information on the content and flow rate in a fluid flow, e.g. a mixture of oil and water flowing in, for example, a pipe, including means for conveying a flowing fluid, means for generating a differential pressure in said fluid, and means for measuring said differential pressure. Means for measuring a capacitance are provided including at least one electrode, and the differential pressure generating means is arranged substantially at the same position along the pipe as the electrode of the capacitance measuring means. Thereby the differential pressure generating means effectively defines an earth electrode for said capacitance measuring means. Means are provided for combining a result from said differential pressure measuring means with a result from said capacitance measuring means to thereby obtain information on the content and flow rate in a fluid flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.