An interesting preliminary evaluation for a low-cost approach for thermographic Non-Destructive Evaluation of carbon fiber-reinforced polymer is presented. Lock-in active thermography, by halogen lamps, has been used on a CFRP specimen with several simulated defects and two different IR-Cameras were used. Both cameras have microbolometric detectors but belong to different price range (A65 and A655), with a difference of cost that changes of a factor of 3. Phase maps for three principal harmonics were analyzed and the limits of low-cost IR camera were investigated by means of a quantitative analysis in terms of the number of detected defects and normalized phase contrast (NPC), changing the acquisition frame rate.
Limits and advantages in using low-cost microbolometric IR-camera in lock-in thermography for CFRP applications / D'Accardi, Ester; Dell'Avvocato, Giuseppe; Palumbo, Davide; Galietti, Umberto. - STAMPA. - (2021). (Intervento presentato al convegno SPIE Defense + Commercial Sensing tenutosi a Virtual (Florida, USA) nel April 12-17, 2021) [10.1117/12.2587962].
Limits and advantages in using low-cost microbolometric IR-camera in lock-in thermography for CFRP applications
D'Accardi, EsterFormal Analysis
;Dell'Avvocato, Giuseppe
Writing – Original Draft Preparation
;Palumbo, DavideSupervision
;Galietti, UmbertoProject Administration
2021-01-01
Abstract
An interesting preliminary evaluation for a low-cost approach for thermographic Non-Destructive Evaluation of carbon fiber-reinforced polymer is presented. Lock-in active thermography, by halogen lamps, has been used on a CFRP specimen with several simulated defects and two different IR-Cameras were used. Both cameras have microbolometric detectors but belong to different price range (A65 and A655), with a difference of cost that changes of a factor of 3. Phase maps for three principal harmonics were analyzed and the limits of low-cost IR camera were investigated by means of a quantitative analysis in terms of the number of detected defects and normalized phase contrast (NPC), changing the acquisition frame rate.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
