Flow meter utilizing Karman vortex street
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United States of America Patent
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-
Jul 12, 1983
Issued Date -
N/A
app pub date -
Sep 8, 1980
filing date -
Nov 4, 1977
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A fluid conduit with a rectangular cross-section is divided into two parallel conduits. A vortex generating rod is disposed perpendicularly to the flow direction in one of the conduits. An ultrasonic wave is directed perpendicularly across the conduit to detect the Karman vortex streets. A sound absorbing material is located along the portion of the conduit wall where the ultrasonic waves exist for preventing the formation of standing waves.
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