Method and system for measurement of road profile

Details Method and system for measurement of road profile Method and system for measurement of road profile

G - Physics

01

B

354/21

G01B 5/28 (2006.01)

Patent

CA 1189626

Abstract of the Disclosure Apparatus and method for use on a measurement vehicle to measure road surface profile independently of varia- tions in vehicle velocity over the road surface. Trans- ducers are mounted on the vehicle suspended mass for measuring distance (W-Y) to the road surface and accelera- tion ? normal to the road surface as the vehicle is pro- pelled over the road surface. A third transducer is responsive to fixed increments ds of vehicle travel over the road surface. Surface profile is determined as a continuous function of the time-independent equation Image where V is average vehicle velocity over each successive incremental distance ds. A spatial domain filter attenuates profile wavelength components in excess of a desired preselected maximum wavelength.

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