Self-compensating rolling weight deflectometer
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United States of America Patent
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May 19, 1998
Grant Date -
N/A
app pub date -
Sep 11, 1995
filing date -
Sep 11, 1995
priority date (Note) -
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Abstract
A rolling weight deflectometer for monitoring deflection of pavement under load. The deflectometer incorporates an alignment laser beam emitter that measures vertical displacement of each of a plurality of distance sensors mounted on a horizontal sensor bearer member that bends or vibrates as it is transported over a pavement for deflection measurement. The measured vertical displacements, due to member bending, allow the deflectometer to compensate for errors introduced by member bending and thereby provide a more accurate measurement of pavement deflection.
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Cited Art Landscape
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