Vortex flowmeter having an asymmetric center body
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United States of America Patent
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Feb 26, 1991
Grant Date -
N/A
app pub date -
Mar 8, 1990
filing date -
Mar 8, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A flow measuring apparatus having a flow tube with an asymmetrical blunt y rigidly mounted on at least one end in a stream of flowing fluid contained within the flow tube so as to form vortices downstream of said asymmetrical blunt body at low Reynolds numbers. A laminar proportional amplifier is used for amplifying the pressure variations caused by the vortices, either a microphone or a pressure transducer is used for converting the amplified pressure variations to an electrical output signal, and a signal conditioner and read out is used for converting the output signal into a rate of flow of the stream of flowing fluid.
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