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Proceedings Paper

Characterization of PET preforms using spectral domain optical coherence tomography
Author(s): Hamid Hosseiny; Manuel João Ferreira; Teresa Martins; Carla Carmelo Rosa
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Paper Abstract

Polyethylene terephthalate (PET) preforms are massively produced nowadays with the purpose of producing food and beverages packaging and liquid containers. Some varieties of these preforms are produced as multilayer structures, where very thin inner film(s) act as a barrier for nutrients leakage. The knowledge of the thickness of this thin inner layer is important in the production line. The quality control of preforms production requires a fast approach and normally the thickness control is performed by destructive means out of the production line. A spectral domain optical coherence tomography (SD-OCT) method was proposed to examine the thin layers in real time. This paper describes a nondestructive approach and all required signal processing steps to characterize the thin inner layers and also to improve the imaging speed and the signal to noise ratio. The algorithm was developed by using graphics processing unit (GPU) with computer unified device architecture (CUDA). This GPU-accelerated white light interferometry technique nondestructively assesses the samples and has high imaging speed advantage, overcoming the bottlenecks in PET performs quality control.

Paper Details

Date Published: 18 November 2013
PDF: 6 pages
Proc. SPIE 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications, 8785DT (18 November 2013); doi: 10.1117/12.2026942
Show Author Affiliations
Hamid Hosseiny, INESC TEC (Portugal)
Manuel João Ferreira, EnerMeter – Sistemas de Medição, Lda (Portugal)
Univ. do Minho (Portugal)
Teresa Martins, EnerMeter – Sistemas de Medição, Lda (Portugal)
Carla Carmelo Rosa, INESC TEC (Portugal)


Published in SPIE Proceedings Vol. 8785:
8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications
Manuel Filipe P. C. Martins Costa, Editor(s)

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