Ultrasound flow measurement device with signal quality monitoring

US11635317B2 · kind B2 · utility

Assignee

• Diehl Metering GmbH · DE

Inventors

• Frederik Neder · Erlangen, DE
• Marcus Wetzel · Nuremberg, DE
• Alexander Hofmann · Hanau, DE
• Florian Herrmann · Maulmacher, DE
• Andreas Madinger · Roßtal, DE

Key dates

• Filing date: Oct 6, 2020
• Grant date: Apr 25, 2023
• Expiry date: Aug 3, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S15/88
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An ultrasound flow measurement device has a vessel through which a fluid to be measured flows. An ultrasound measurement configuration with an ultrasound transducer is provided for measuring a propagation time of an ultrasound signal containing a plurality of periods along a measurement section that runs partly in a direction of flow. A controller determines a fluid flow on a basis of a propagation time measurement. The controller contains a memory, a first evaluator for determining a period duration of at least one of the periods of an ultrasound signal received after passing through the measurement section, a second evaluator for determining a spread value of a predetermined number of last received ultrasound signals, a comparator for comparing the spread value with a threshold value, and an actioning device for initiating a control action, assigned to the threshold value that has been exceeded, for the ultrasound flow measurement device.