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The scanning microprofilometry technique is an interferometric technique
which enables the measurement with micrometric resolution of the shape of
small objects, or of almost flat, finely indented objects.
The appliance developed by the GBC, comprising a commercial range
finder mounted on a motorised scanning system, enables the scanning of
objects over a maximum area of 300x300 mm2 at a time.
The instrument has a resolution of 1 µm over an operating
distance range of 8 mm. at a working distance of about 40 mm.
The accuracy is better than 6 µm and the transversal resolution is about 20 µm.
Microprofilometry has been applied, among other things, to the 3D relief of wooden matrix for xylography (wood engravings),
to the measurement of micro-detachments of colour on paintings and to the measurement
of roughness on marble and bronze statues.
High resolution surface 3D scanning for conservation purposes
The microprifilometer technical data
Applications
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