Patent · US Active

Method for determining the time of flight of an ultrasound signal in a flowing medium and ultrasonic flow meter

US11821767B2 · kind B2 · utility

0Cited by

6References

14Claims

0Family size

Assignee

Diehl Metering GmbH · DE

Inventors

Marcus Wetzel · Nuremberg, DE
Ulrich Gaugler · Nastätten, DE

Key dates

Filing date	Dec 3, 2018
Grant date	Nov 21, 2023
Priority date	—
Expiry date	Aug 10, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG01N29/222
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for determining the time of flight, preferably the absolute time of flight, of an ultrasound signal in a flowing medium, includes using an ultrasound emitter to generate an ultrasound signal provided with a marker. The ultrasound signal is transmitted through the flowing medium to an ultrasound receiver, and the location of the marker is used in order to determine the time of flight of the ultrasound signal. The period duration of at least one selected period of the reception signal is measured to determine the location of the marker. An ultrasonic flow meter which can be operated according to the method is also provided.

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