Patent · US Active

Differential pressure measurement device having a microwave resonator with a flexible member

US7770469B2 · kind B2 · utility

13Cited by

8References

26Claims

0Family size

Assignee

Roxar Flow Measurement AS · NO

Inventors

Ebbe Gustaf Nyfors · Sandnes, NO
Per Hassel Sørensen · Sandnes, NO

Key dates

Filing date	Feb 1, 2007
Grant date	Aug 10, 2010
Priority date	—
Expiry date	Feb 1, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG01L13/06
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A differential pressure (dP) measurement device for use in flow measurement including a first microwave resonator (1) having a flexible or yieldable part or member (4) deformable or yieldable when subject to a differential pressure in such a way as to alter a resonant frequency of said resonator, and an electronic unit (12, 14) which is coupled to the resonator (1), and where the electronic unit is adapted to produce an output depending on a resonant frequency of the resonator (1).

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