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10. Targeted part measurements
10.1 Target
To measure, without contact, the displacements of a part in the directions contained in the target surface, it is necessary to add detectable marks. These are made of :
by engraving or pserigraphy to produce angle encoders or optical rulers;
with reflective stickers to measure rotation speed ;
self-adhesive targets for theodolite measurements 6
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Targeted part measurements