Holographic tests on the ghiberti panel ‘the life of joseph’

Year: 1982

Authors: Bertani D., Cetica M., Molesini G.

Autors Affiliation: Istituto Nazionale di Ottica, Largo E. Fermi 6 Arcetri Firenze, 50125, Italy; Bertoni, Italy; Bertoni, Italy

Abstract: An application of holographic interferometry on a work of art under restoration is described. The artifact is a panel, a bronze bas-relief 80cm x 80cm in size. Double exposure holograms and real time interferometric tests were recorded in a laboratory equipped with holography. These techniques have shown the kinetic behaviour of the artifact in response to a small thermal stress, simulating the larger deformation caused by the daily thermal variation in the natural environment. In this way, it has been demonstrated how temperature variations affect both particular parts of the object and its overall structure, acting in time as an agent of deterioration.


Volume: 27 (2)      Pages from: 61  to: 64

More Information: The authors are greatly indebted· to Professor U. Baldini, Director of the Opificio delle Pietre Dure e Laboratorio di Restauro of Florence, for granting permission to carry out the experiments in the laboratories of the Istituto Nazionale di attica of Florence; Professor G. Rocchi, holder of the Prima Cattedra di Restauro dei Monumenti of the Facolta di Architettura of Florence, for suggesting the work and for generous encouragement; Professor F. T. Arecchi, Director of the Istituto Nazionale di attica, for helpful discussions throughout the work. This work was partly supported by the Consiglio Nazionale delle Richerche.
KeyWords: holography; non destructive testing; conservation; restoration; diagnostics
DOI: 10.1179/sic.1982.27.2.61

Citations: 14
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