Ultrasonic fluid measurement instrument having a plurality of split channels formed by partition boards
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United States of America Patent
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Apr 22, 2008
Grant Date -
Aug 23, 2007
app pub date -
Apr 19, 2007
filing date -
Feb 24, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An ultrasonic fluid measurement instrument is capable of highly accurate fluid measurement. A measurement part is provided forming a plurality of split channels partitioned by partition boards halfway across a fluid channel, and at least a pair of ultrasonic transmitter-receivers for transmitting ultrasonic waves into the fluid flowing through the split channels and receiving ultrasonic waves that have passed through the fluid. Further, an arithmetic unit calculates the flow velocity and/or flow volume of the fluid according to the propagation time of the ultrasonic waves. The measurement part further includes an approach channel for preliminarily rectifying the fluid flowing to the split channels.
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