Contactless thermal profilometry of carbon-resin materials by IR thermography

Groz, Marie-Marthe; Sommier, Alain; Abisset-Chavanne, Emmanuelle; Chevalier, S.; Méziane, Anissa; Batsale, Jean Christophe; Pradère, Christophe

doi:10.1016/j.measurement.2021.109723

Cited by 1 publication

(1 citation statement)

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“…Finally, the observation of the temperature field with IR camera is limited by the resolution of the instrument and the diffraction limits of the IR radiation. One way to circumvent this problem is to consider the transient response of a pixel averaging the response to a small sized moving spot [11]. Some applications of our team will be shown in the areas mentionned above such as: NDE, tomography, super resolution.…”

Section: Introductionmentioning

confidence: 99%

Multiscale aspects of the response of a temperature field to a pulsed laser or a periodic laser spot: some applications for IR thermography for non destructive evaluation, terahertz tomography, super-resolution, and microscale heat transfer

Batsale

Abisset

Achchaq

et al. 2023

Thermosense: Thermal Infrared Applications XLV

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The study of the response of a temperature field (recorded from IR cameras) to a laser spot heating is increasingly used for NDE (Non Destructive Evaluation) applications. The most classical type of application is to use the flying spot in order to detect vertical cracks and/or to measure the in plane thermal diffusivity in relation to the observation plane of opaque materials. But several other ways of applications are presented here related to tomography and also super resolution. Instead of opaque materials applications, the tomography is using the principles of the flying spot. It consists in an indirect detection on an intermediate layer (the thermoconverter) that can convert a wide range of radiation from the spot. The objective of super-resolution can also be implemented with flying spot in order to circumvent the low spatial resolution of IR imaging systems. Such methods consider spots whose diameter is small compared to the size of the pixel. Some applications of our team will be shown with multiscale considerations.

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Section: Introductionmentioning

confidence: 99%