Patent · US Expired

Flowmeter mounted on a containment

US7469599B2 · kind B2 · utility

40Cited by

4References

5Claims

0Family size

Assignee

Endress+Hauser Flowtec AG · CH

Inventors

Thomas Froehlich · Ottikon, CH
Achim Wiest · Weil am Rhein, DE
Torsten Strunz · London, GB

Key dates

Filing date	Oct 15, 2003
Grant date	Dec 30, 2008
Priority date	—
Expiry date	Oct 15, 2023

Classification

Technology area (CPC G)Physics
CPC primaryG01F1/66
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Flowmeter comprising at least two ultrasonic transducers that are mounted on a container which is penetrated by a medium in a certain direction of flow. The ultrasonic transducers alternately transmit and receive ultrasonic test signals in the direction of flow and counter to the direction of flow. The flowmeter further comprises a control/evaluation unit which determines and/or monitors the volume flow of the medium inside the container based on the difference in the travel time of the ultrasonic test signals propagating in the direction of flow and counter to the direction of flow. The ultrasonic transducers are configured such that they transmit and receive ultrasonic test signals or sound fields having a large aperture angle or a great beam expansion.

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