Self-diagnosing differential pressure flow meter
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United States of America Patent
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Sep 2, 2014
Grant Date -
Mar 13, 2014
app pub date -
Sep 7, 2012
filing date -
Sep 7, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
An aspect provides a method of metering flow through a fluid conduit having an obstruction therein, including: placing an obstruction body within the conduit; generating at least two differential pressure measurement signals using at least three different pressure ports, said at least three different pressure ports comprising: an upstream pressure port; a downstream pressure port; and an auxiliary pressure port; wherein at least one of the upstream pressure port, the downstream pressure port, and the auxiliary pressure port is positioned at an angle between 0 and 90 degrees with respect to a conduit wall; establishing a baseline relationship between the at least two differential pressure measurement signals; and determining if the baseline relationship between the at least two differential pressure measurement signals differs by a predetermined amount. Other aspects are described and claimed.
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