Method for measuring deformation of tire tread

Details Method for measuring deformation of tire tread Method for measuring deformation of tire tread

2009-01-23

2011-10-18

Allen, Andre (Department: 2855)

Measuring and testing

Tire, tread or roadway

C073S146500

Reexamination Certificate

active

08037744

ABSTRACT:
A method for measuring deformation of a tire tread is provided. The method uses a tire tread deformation producing system10including a flat, transparent base plate24having first and second opposite surfaces24aand24b. The method also uses a vision system12including a pair of CCD cameras30-1and30-2, which are positioned on the side of the second surface of the base plate. A test tire14has a tire tread having tread grooves16. A portion of the tire tread of the test tire is urged against the first surface of the base plate. The three-dimensional shape of a groove wall surface of a tread groove of the test tire is measured by imaging the tread groove across the base plate by the CCD cameras while the test tire is subject to deformation.

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Yoshiharu Morimoto, et al.Shape and Strain Measurement of 3-D Object Using Fourier Transform Grid Method, IAPR Workshop on Machine Vision Applications, Nov. 28-30, 1990.

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