Ultrasonic flowmeter and method for measuring flow
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United States of America Patent
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Nov 14, 2017
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Sep 3, 2015
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Sep 5, 2014
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Abstract
An ultrasonic flow meter that includes a first ultrasonic transducer for making incident a first ultrasonic signal against a pipe through which a fluid flows; a second ultrasonic transducer, disposed in a position capable of receiving the first ultrasonic signal, for making incident a second ultrasonic signal against pipe; a flow velocity computation component for computing the flow velocity of the fluid within pipe based on a first time period during which the first ultrasonic signal arrives at the second ultrasonic transducer and on a second time period during which the second ultrasonic signal arrives at the first ultrasonic transducer; a logarithmic correction function saving component for saving a logarithmic correction function; and a logarithmic correction component for correction the flow velocity by using the correction coefficient that corresponds to the Reynolds number of the fluid.
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