Bi-directional flow meter with two fluidic oscillators connected in series
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United States of America Patent
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Sep 15, 2015
Grant Date -
Sep 8, 2011
app pub date -
Sep 11, 2009
filing date -
Sep 12, 2008
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Abstract
A flow tube for a bidirectional flow meter includes a first flow chamber for generating a periodic pressure fluctuation whose frequency varies in dependence on the flow rate of fluid through the meter in a first direction. The flow tube also includes a second flow chamber for generating a periodic pressure fluctuation whose frequency varies in dependence on the flow rate of fluid through the meter in a second direction, opposite to the first direction. The first and second flow chambers are connected in series between an inlet port and an outlet port.
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