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Non‐invasive on‐site method for thickness measurement of transparent ceramic glazes based on depth from focus

Abstract : Glazed ceramics are a common material analyzed through geochemistry, whether in the form of tableware collected during excavations or tiles observed as part of architectural features. Within the framework of these studies, measuring the thickness of the transparent glaze is one of the useful variables available for the characterization of the ceramic, contributing to searches for provenance as well as serialization. However, this task often requires invasive methods performed in the laboratory, which may not always be possible. This paper develops a non-invasive and portable on-site system for measuring the thickness of ceramic glazes. Based on the Depth from Focus technique, this method makes use of a classical camera, a macroscopic lens, a translation stage, and a laptop for system control. In this article, we test this method through the measurement of glaze for ten samples and compared to results obtained for sections through SEM.
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https://hal.archives-ouvertes.fr/hal-03740920
Contributor : Xavier Granier Connect in order to contact the contributor
Submitted on : Thursday, August 11, 2022 - 10:44:05 AM
Last modification on : Friday, September 16, 2022 - 4:27:38 PM

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Corentin Cou, Ayed Ben Amara, Xavier Granier. Non‐invasive on‐site method for thickness measurement of transparent ceramic glazes based on depth from focus. Archaeometry, Wiley, In press, ⟨10.1111/arcm.12813⟩. ⟨hal-03740920⟩

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