Open channel multichannel ultrasonic flowrate measurement apparatus and method
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United States of America Patent
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Jul 14, 1998
Grant Date -
N/A
app pub date -
Dec 18, 1995
filing date -
Dec 18, 1995
priority date (Note) -
Expired
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Abstract
A measurement method for distances between ultrasonic transducers installed on opposite banks of a river or open water channel is provided. Ultrasonic transducer clusters having two transducers spaced by a known distance are used for multichannel ultrasonic flowrate measurement. The distance between ultrasonic transducers installed in the water on both sides of the river is determined by the measurement of the horizontal average flow velocity directly by ultrasonic waves. A calibration and testing method is provided for the distance between two ultrasonic transducers included in the clustered ultrasonic transducer for the calibration and testing method of the flowrate measurement error for a multichannel ultrasonic flowrate measurement system, and for the clustered ultrasonic transducer apparatus.
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