ULTRASONIC FLOW METER AND ULTRASOUND ABSORBING BODY FAULT EVALUATING METHOD
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United States of America Patent
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Issued Date -
Nov 12, 2015
app pub date -
May 6, 2015
filing date -
May 7, 2014
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Abstract
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.
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