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Articles

The Use of Speckle Interferometry in the Study of Large Works of Art

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Pages 174-176 | Received 03 Apr 1985, Published online: 16 Nov 2018
 

ABSTRACT

The possibility of employing speckle interferometry for the non-destructive testing of the statue of Marco Aurelio has been evaluated. A simple and accurate speckle interferometer has been developed, using the relief image formed on the photographic emulsion as a reflecting phase grating. As a result, the displacement components parallel to the photographic emulsion plane have been measured within a range of 0.1–10 mm for several points of the horse statue when it was loaded in the same position as the detached statue of the rider.

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