Roll-to-roll in-line implementation of microwave free-space non-destructive evaluation of conductive composite thin layer materials - Archive ouverte HAL
Article Dans Une Revue Applied Sciences Année : 2021

Roll-to-roll in-line implementation of microwave free-space non-destructive evaluation of conductive composite thin layer materials

Résumé

A free-space microwave nondestructive testing and evaluation module is developed for the low-power, non-ionizing, contactless, and real-time characterization of doped composite thin-film materials in an industrial context. The instrumentation proposed is built up with a handled vector network analyzer interfaced with corrugated horn antennas to measure the near-field complex reflection S11 of planar prepreg composite materials in a roll-to-roll in-line production line. Dedicated modeling and calibrations routines are developed to extract the microwave conductivity from the measured microwave signal. Practical extraction of the radiofrequency (RF) conductivity of thin film prepreg composite materials doped with nano-powders is exemplary shown at the test frequency of 10 GHz.
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hal-03124050 , version 1 (28-01-2021)

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Grigorios Koutsoukis, Ivan Alic, Antonios Vavouliotis, Ferry Kienberger, Kamel Haddadi. Roll-to-roll in-line implementation of microwave free-space non-destructive evaluation of conductive composite thin layer materials. Applied Sciences, 2021, 11 (1), 378, 11 p. ⟨10.3390/app11010378⟩. ⟨hal-03124050⟩
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