Method of Measuring the Three-Dimensional Profile of a Ground, and Device for Implementing Said Method
First Claim
1. A method of measuring, in three dimensions, the profile of a pavement on which vehicles fitted with at least one tire can run, comprising the steps of:
- performing a first topographical measurement on site with a precision of at least one millimeter of an elementary surface of said pavement;
defining the points of contact between said surface and the tread of a given tire; and
performing at least a second topographical measurement of said points of contact is carried out on site so as to obtain a representation, with a resolution of the order of one micron, of the microroughness of said points of contact.
1 Assignment
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Accused Products
Abstract
A method of measuring the profile, in three dimensions, of a pavement on which vehicles fitted with at least one tire may run. A first topographical measurement is carried out on site with a precision of at least one millimeter of an elementary surface of said pavement, then the points of contact between said surface and the tread of a given tire are defined and at least a second topographical measurement of said points of contact is carried out on site so as to obtain a three-dimensional representation, with a resolution of the order of one micron, of the microroughness of said points of contact.
17 Citations
10 Claims
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1. A method of measuring, in three dimensions, the profile of a pavement on which vehicles fitted with at least one tire can run, comprising the steps of:
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performing a first topographical measurement on site with a precision of at least one millimeter of an elementary surface of said pavement; defining the points of contact between said surface and the tread of a given tire; and performing at least a second topographical measurement of said points of contact is carried out on site so as to obtain a representation, with a resolution of the order of one micron, of the microroughness of said points of contact. - View Dependent Claims (2, 3, 4, 5, 6)
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- 7. A device for the on-site measurement of the profile, in three dimensions, of a pavement on which vehicles fitted with at least one tire can run, comprising a first measurement tool for measuring with a precision of at least one millimeter and at least a second measurement tool for measuring with a precision of the order of one micron, at least one computer, and a means for protecting against the environmental conditions.
Specification