Active thermography non-destructive inspection of a damaged artwork with a complex shape

被引：0

作者：

Ishikawa, Masashi ^{[1
]}

Sfarra, Stefano ^{[2
]}

Theodorakeas, Panagiotis ^{[3
]}

机构：

[1] Tokushima Univ, 2-1 Minamijosanjima, Tokushima 7708506, Japan

[2] Univ Aquila, Dept Ind & Informat Engn & Econ, Piazzale E Pontieri 1, I-67100 Laquila, AQ, Italy

[3] Natl Tech Univ Athens NTUA, Zografou Campus, Athens 15780, Greece

来源：

THERMOSENSE: THERMAL INFRARED APPLICATIONS XLVI | 2024年 / 13047卷

关键词：

Non-destructive inspection; Thermography; Artwork; Pulsed phase thermography (PPT); Thermographic signal reconstruction (TSR); Principal component thermography (PCT); PRINCIPAL COMPONENT THERMOGRAPHY;

D O I：

10.1117/12.3013386

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

This study reports the results of active thermography non-destructive inspection of an ancient artwork. The artwork was decorated with metal ornaments, realized by hands from specialized craftsmen. However, it was seriously damaged by a catastrophic event based on repeated vibrations. The condition of the ancient artwork was evaluated from thermal data recorded during and after a long pulse heating. In this study, the evaluations were performed using not only the raw thermograms but also the results of three post-processing algorithms, namely: pulsed phase thermography (PPT), thermographic signal reconstruction (TSR), and principal component thermography (PCT). Comparison of the results based on signal- to-noise ratio (SNR) calculations showed that TSR was the most effective technique for detecting defects, and PCT was also effective for the detection of crack-shaped defects. In contrast, PPT seems not suitable for inspection of objects with a complex shape.

引用

页数：6

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