Naslov
Phase contrast using Differentiated Absolute Contrast Method

Autori
Suša, Mirela ; Benitez, Hernan Dario ; Ibarra, Clemente Loaiza, Humberto ; Bendada, Abdel Hakim ; Maldague, Xavier

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of 8th International Conference on Quantitative Infrared Thermography / Balageas, Daniel ; Busse, Gerd ; Carlomagno, Giovanni Maria (ur.). - Padova, Italija / - , 2006

Skup
Proceedings of 8th International Conference on Quantitative Infrared Thermography

Mjesto i datum
Padova, Italija, 27.06.2006. - 30.06.2006

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Pulsed phase thermography; differentiated absolute contrast; depth inversion; NDE

Sažetak
The article proposes implementing the Differentiated Absolute Contrast Method approach to reduce the impact of the sound area variability typical of phase contrast results from PPT experiences. Since depth retrieval from phase as proposed in ‎ [1] needs the sound area for phase difference calculation, the problem of a priori knowledge of the defect location as well as the non-uniform heating arises. Using DAC method, these difficulties could be avoided since the phase difference is obtained for corresponding pixels of phase image from thermogram sequence and of phase image from calculated non-defective surface temperature evolution starting from the last thermogram with no defect visible yet.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA