Terahertz imaging and non-disruptive inspection: A practical case

Raimondo, N.; Gavelli, Marco; Xu, Qing; Scopigno, Riccardo

doi:10.1109/irmmw-thz.2011.6105004

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…The framework sketched in [3] and detailed in Fig. 1 addresses the component inspection through the exploitation of a set of main inputs, namely: the CAD polygonal sample files of the objects to be detected (GTs), and the 3D THz images as resulting from the THz-tomography (OBJs).…”

Section: Proposed Algorithmmentioning

confidence: 99%

Terafly: A THz image-processing-based architecture for semi-automatic industrial inspection and measurement

Baccaglini

Gavelli

Raimondo

et al. 2012

2012 37th International Conference on Infrared, Millimeter, and Terahertz Waves

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This work describes the research activity in the Terafly project which aims at the development of an automated architecture for the inspection and measurement of industrial components. The project addresses flaw detection and analysis of para-aramid synthetic fiber components by means of Terahertz 3D tomographies and CAD models. This paper describes the stages of the system, from the model-to-object mapping to the automatic geometrical measurements.

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Section: Proposed Algorithmmentioning

confidence: 99%

Terafly: A THz image-processing-based architecture for semi-automatic industrial inspection and measurement

Baccaglini

Gavelli

Raimondo

et al. 2012

2012 37th International Conference on Infrared, Millimeter, and Terahertz Waves

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“…Until now, it was not really explored because of the absence of adapted detector and radiation sources. The need for safety increasing in air transports and the improvement of technologies make that this spectral band was these last years studied again [1][2][3][4][5][6]. Thus new sources are now available in the scientific laboratories.…”

Section: Introductionmentioning

confidence: 99%

Non destructive testing of works of art by stimulated infrared thermography and terahertz analysis

Bodnar¹,

Metayer²,

Mouhoubi³

et al. 2012

Proceedings of the 2012 International Conference on Quantitative InfraRed Thermography

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The improvement of technologies and the increase in the need for safety in the airports lead to the development of non-destructive testing devices using terahertz waves. These waves present indeed, the advantage of being on the one hand relatively penetrating. They have the advantage in addition of not being ionizing. It is thus potentially of an interesting contribution in the field of the non destructive testing. With the help of the VISIOM Company, we then approached the possibilities of this new method of analysis for the assistance to the restoration of the works of art. We show here, on the one hand that the method allow, like the photothermal method, the detection of defects located in murals paintings or marquetries. We show in addition that the method allows the detection of defects potentially masked by other defects, which does not allow stimulated infra-red thermography. We show in the third time, that the method does not seem sensitive to the various pigments constituting the pictorial layer, which constitutes also an advantage compared to the photothermal method. We show finally, that the terahertz method is limited as regards analysis of low-size defects, which is not the case of stimulated infra-red thermography.

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