Ultrasonic flow meter and ultrasound absorbing body fault evaluating method

An ultrasonic flow meter includes: a first ultrasound transceiving portion provided on an outer periphery of an upstream side of piping; a second ultrasound transceiving portion provided on an outer periphery of a downstream side of the piping; a flow rate calculating portion that calculates a flow...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KOJI MURAKI, TOMOHITO HAYASHI
Format:	Patent
Sprache:	eng
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:	An ultrasonic flow meter includes: a first ultrasound transceiving portion provided on an outer periphery of an upstream side of piping; a second ultrasound transceiving portion provided on an outer periphery of a downstream side of the piping; a flow rate calculating portion that calculates a flow rate of a fluid based on time until a reception, by the second ultrasound transceiving portion, of an ultrasound transmitted by the first ultrasound transceiving portion and time until a reception, by the first ultrasound transceiving portion, of an ultrasound transmitted by the second ultrasound transceiving portion; an ultrasound absorbing body provided on an outer periphery of the piping; a piping-propagated wave identifying portion; an attenuation status value calculating portion; and a fault evaluating portion that evaluates that a fault has occurred in the ultrasound absorbing body.