DEVICE AND METHOD FOR MEASURING THE FLOW OF A FLUID IN A TUBE MOVED BY A PERISTALTIC PUMP

DEVICE AND METHOD FOR MEASURING THE FLOW OF A FLUID IN A TUBE MOVED BY A PERISTALTIC PUMP

A device for measuring (1) the flow of fluid inside a tube (2) moved by a peristaltic pump (3) is provided with: a detection electrode arrangement (6) coupled to the tube (2) to detect an electrostatic charge variation originated by the mechanical action of the peristaltic pump (3) on the tube (2);...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ALESSI, Enrico Rosario, PASSANITI, Fabio, DELLUTRI, Michele Alessio
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL
METERING BY VOLUME
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:A device for measuring (1) the flow of fluid inside a tube (2) moved by a peristaltic pump (3) is provided with: a detection electrode arrangement (6) coupled to the tube (2) to detect an electrostatic charge variation originated by the mechanical action of the peristaltic pump (3) on the tube (2); a signal processing stage (8), electrically coupled to the detection electrode arrangement (6) to generate an electrical charge variation signal (SQ); and a processing unit (10), coupled to the signal processing stage (8) to receive and process in the frequency domain the electrical charge variation signal (SQ) to obtain information on the flow of a fluid that flows through the tube (2) based on the analysis of frequency characteristics of the electrical charge variation signal (SQ).