NON-CONTACT OPTICAL FLOW MEASUREMENTS
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United States of America Patent
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Issued Date -
Nov 4, 2010
app pub date -
Nov 10, 2008
filing date -
Nov 9, 2007
priority date (Note) -
Abandoned
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Abstract
A method and apparatus are provided for non-contact optical flow measurement in a pipe, the apparatus having one or more modules configured to sense light that is scattered off several points longitudinally along a wall of a pipe having a medium flowing therein and to provide a signal containing information about a deflection of the wall of the pipe that can be used to determine a parameter related to the medium flowing in the pipe, including a flow rate of the medium. The deflection in the pipe wall is caused by a turbulence induced pressure fluctuation which in turn induces a localized pipe wall deflection.
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