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11. Measurement on reflective parts
11.1 Principle
Small defects in the flatness of a surface are highly visible when observing the reflected image of a screen on a surface (figure 19 ), as they distort the image in the same way as a deforming mirror. The displacements of the screen lines are a function of variations in the slope of the surface. It is in fact the automation of a visual method that was used, for example, in goldsmithing.
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Measurement on reflective parts
Measurements of alignment, straightness, flatness and parallelism
