Nondestructive testing of wood based on 120GHz FMCW terahertz radar

Xibo Luo; Shaolei Cheng; Jinling Li; Zhenwei Zhang

doi:10.1117/12.3038389

8 November 2024 Nondestructive testing of wood based on 120GHz FMCW terahertz radar

Xibo Luo, Shaolei Cheng, Jinling Li, Zhenwei Zhang

Author Affiliations +

Proceedings Volume 13247, Infrared, Millimeter-Wave, and Terahertz Technologies XI; 132470Y (2024) https://doi.org/10.1117/12.3038389
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Conference Poster

Abstract

Terahertz waves are capable of non-destructive detecting the structural information and evaluting structural integrity of wood. In this paper, leveraging the high penetration and nondestructive characteristics of terahertz waves, a 120GHz frequency-modulated continuous terahertz wave imaging system was employed to examine the wood samples. The results revealed that terahertz surface imaging can intuitively depict the light and dark textures on the surface of the wood. Furthermore, terahertz waves can penetrate wood, capturing a two-dimensional terahertz image of the interface between the wood and metal plate, and clearly identifying defects with distinct features within the figures.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xibo Luo, Shaolei Cheng, Jinling Li, and Zhenwei Zhang "Nondestructive testing of wood based on 120GHz FMCW terahertz radar", Proc. SPIE 13247, Infrared, Millimeter-Wave, and Terahertz Technologies XI, 132470Y (8 November 2024); https://doi.org/10.1117/12.3038389

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