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The micro-profilometer scanning technique has been applied on
various panel paintings (e.g. Raffaello, Leonardo) and
statues (e.g. Michelangelo, Giambologna),
each time specifically designing the instrument configurations to
highlight details not visible with the naked eye and often not detectable with other techniques.
The measurement results allowed to reveal painting detachments,
material deformations and also surface roughness.
For the Michelangelo's David diagnostic measurements,
the statue had been embedded on a scaffold more then 7
meters high, and a special mechanical arm had been realized to
survey parts otherwise difficult to reach.
Due to its very fine resolution, the micro-profilometer
body was tightened to the statue in order to minimize
vibrations and possible connected measurements errors.
In order not to damage the statue, contact points were protected with felt.
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