Apparatus for inspection of a fluid and method
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United States of America Patent
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-
Nov 13, 2012
Grant Date -
Jan 6, 2011
app pub date -
Feb 23, 2009
filing date -
Feb 22, 2008
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus for inspection of a fluid comprising: a channel portion, the channel portion having a channel inlet and a channel outlet separate from the channel inlet; a piezoelectric sensor element provided at a sensor position of the channel and arranged to contact fluid flowing through the channel portion from said channel inlet to said channel outlet, the apparatus being configured to determine a difference value being a value corresponding to a difference between a resonant frequency of oscillation of said piezoelectric element at a given moment in time and a reference resonant frequency.
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