Article | REF: R1332 V1

Non-contact measurement - Optical methods (part 1)

Author: Jean‐Louis CHARRON

Publication date: June 10, 2004

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2. Triangulation

Measuring point positions by triangulation involves determining the intersection of two directions: the direction of illumination of the point to be measured on the workpiece, and the direction from which the illuminated point of the measuring system can be seen (figure 7 a ).

Optical triangulation measurement systems
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Triangulation