Self-compensating rolling weight deflectometer

Details Self-compensating rolling weight deflectometer Self-compensating rolling weight deflectometer

1995-09-11

1998-05-19

Dombroske, George M.

Measuring and testing

Tire, tread or roadway

Tire inflation testing installation

73800, E01C 2300

Patent

active

057538085

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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