Triangulation of pavement deflections using more than four sensors
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United States of America Patent
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Dec 3, 2013
Grant Date -
Oct 27, 2011
app pub date -
Oct 18, 2010
filing date -
Oct 16, 2009
priority date (Note) -
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Abstract
Systems and methods are disclosed that provide improved non-destructive testing of pavements and in particular non-destructive testing of pavements using rolling wheel deflectometer systems having more than four sensors. The additional sensors more accurately detect pavement deflections under load by compensating for the influence the load deflection basin can have on sensors beyond those at the wheel load. The sensors should be spaced with equal distances from the rolling weight and can have a distance between adjacent sensors that is greater than the equivalent thickness of the pavement being measured.
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