Measurement on reflective parts
Non-contact measurement - Optical methods (part 2)
Article REF: R1333 V1
Measurement on reflective parts
Non-contact measurement - Optical methods (part 2)

Author : Jean‐Louis CHARRON

Publication date: June 10, 2004 | Lire en français

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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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