A modal approach for shape defect measurement based on global stereocorrelation - Archive ouverte HAL
Article Dans Une Revue Optics and Lasers in Engineering Année : 2020

A modal approach for shape defect measurement based on global stereocorrelation

Résumé

The metrology of mechanical parts using non-contact systems often requires complex post-processing operations to evaluate shape defects of the studied surface. For large parts, the geometric complexity combined with the amount of acquired data make such treatments long and tedious. To overcome this challenge, a shape defect measurement system based on global stereocorrelation is developed. This approach integrates a self-calibration step using the CAD model of the studied part that allows the measurement results to be directly expressed in the numerically defined frame of the part. The defects will be measured in a predefined modal basis, thereby introducing registrations with a limited number of degrees of freedom and allowing for easier analyses of the measured defects.
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Dates et versions

hal-02440185 , version 1 (15-01-2020)

Identifiants

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David Etievant, Yann Quinsat, François Thiebaut, François Hild. A modal approach for shape defect measurement based on global stereocorrelation. Optics and Lasers in Engineering, 2020, 128, pp.106030. ⟨10.1016/j.optlaseng.2020.106030⟩. ⟨hal-02440185⟩
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