Terahertz Frequency-Modulated Continuous-Wave Inspection of an Ancient Enamel Plate
Language
en
Article de revue
This item was published in
Sensors. 2025, vol. 25, n° 9, p. 2928
MDPI
English Abstract
This study investigates the application of terahertz frequency-modulated continuous-wave (FMCW) imaging for the non-destructive inspection of a historical enamel plate, using both reflection and transmission modes. A 300 ...Read more >
This study investigates the application of terahertz frequency-modulated continuous-wave (FMCW) imaging for the non-destructive inspection of a historical enamel plate, using both reflection and transmission modes. A 300 GHz FMCW radar system was employed to capture high-resolution images of the plate's internal and surface structures. Through optimized data acquisition and processing, the system successfully revealed subsurface features such as fractures, as well as surface-level textural variations linked to the decorative glazes. Although pigment differentiation remains a challenge, contrast variations observed in THz images suggest correlations with material composition. The results highlight the potential of FMCW terahertz imaging as a compact, rapid, and noncontact diagnostic tool for cultural heritage analysis. Its practicality and adaptability make it particularly suitable for in situ inspections in museums or restoration contexts.Read less <
English Keywords
millimeter wave radar imaging
terahertz imaging
thickness
fracture detection
non-destructive testing
ceramic
earthenware
polychrome glazes
pigment
Origin
Hal importedCollections