Flow meter for a fluid with a pulsating flow

US11815374B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Ralf Huck · Großkrotzenburg, DE
• Jürgen Kiefer · Friedrichshafen, DE

Key dates

• Filing date: Feb 11, 2020
• Grant date: Nov 14, 2023
• Expiry date: Feb 11, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G01F1/666
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A flow meter for a fluid with a pulsating flow includes a piezo transducer for receiving and converting fluid pulses into electrical pulses, a AC/DC converter circuit for cumulatively storing the pulse energies of the electrical pulses in an energy store, a counter for counting the electrical pulses during a time interval, an evaluation device for determining a pulse parameter indicative of the flow rate of at least one of the electrical pulses and for determining a flow value based on the electrical pulses counted within the time interval and the determined pulse parameter, a communication device for the preferably wireless transmission of the determined flow value and a power supply device for the exclusive power supply of the flow meter with the energy stored in the energy store.