Precision Fibre Angle Inspection for Carbon Fibre Composite Structures Using Polarisation Vision

This paper evaluates the precision of polarisation imaging technology for the inspection of carbon fibre composite components. Specifically, it assesses the feasibility of the technology for fibre orientation measurements based on the premise that light is polarised by reflection from such anisotrop...

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Autores principales:	Gary A. Atkinson, Sean O’Hara Nash, Lyndon N. Smith
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	polarisation carbon fibre composites component inspection Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/23d1147c1bcc4e5a87dc213e69cfeba3
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spelling	oai:doaj.org-article:23d1147c1bcc4e5a87dc213e69cfeba32021-11-25T17:24:27ZPrecision Fibre Angle Inspection for Carbon Fibre Composite Structures Using Polarisation Vision10.3390/electronics102227652079-9292https://doaj.org/article/23d1147c1bcc4e5a87dc213e69cfeba32021-11-01T00:00:00Zhttps://www.mdpi.com/2079-9292/10/22/2765https://doaj.org/toc/2079-9292This paper evaluates the precision of polarisation imaging technology for the inspection of carbon fibre composite components. Specifically, it assesses the feasibility of the technology for fibre orientation measurements based on the premise that light is polarised by reflection from such anisotropically conductive surfaces. A recently commercialised Sony IMX250MZR sensor is used for data capture by using various lighting conditions. The paper shows that it is possible to obtain sub-degree accuracy for cured and dry woven and unidirectional materials in ideal conditions, which comprised dark field illumination. Indeed, in ideal conditions, the average relative angles can be measured to an accuracy of 0.1–0.2°. The results also demonstrate a precision of the order 1° for more general illumination, such as dome illumination and ambient lighting, for certain material type/lens combinations. However, it is also shown that the precision varies considerably depending on illumination, lens choice and material type, with some results having errors above 2°. Finally, a feasibility study into the inspection of three-dimensional components suggests that only limited application is possible for non-planar regions without further research. Nevertheless, the observed phenomena for such components are, at least, qualitatively understood based on physics theory.Gary A. AtkinsonSean O’Hara NashLyndon N. SmithMDPI AGarticlepolarisationcarbon fibre compositescomponent inspectionElectronicsTK7800-8360ENElectronics, Vol 10, Iss 2765, p 2765 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	polarisation carbon fibre composites component inspection Electronics TK7800-8360
spellingShingle	polarisation carbon fibre composites component inspection Electronics TK7800-8360 Gary A. Atkinson Sean O’Hara Nash Lyndon N. Smith Precision Fibre Angle Inspection for Carbon Fibre Composite Structures Using Polarisation Vision
description	This paper evaluates the precision of polarisation imaging technology for the inspection of carbon fibre composite components. Specifically, it assesses the feasibility of the technology for fibre orientation measurements based on the premise that light is polarised by reflection from such anisotropically conductive surfaces. A recently commercialised Sony IMX250MZR sensor is used for data capture by using various lighting conditions. The paper shows that it is possible to obtain sub-degree accuracy for cured and dry woven and unidirectional materials in ideal conditions, which comprised dark field illumination. Indeed, in ideal conditions, the average relative angles can be measured to an accuracy of 0.1–0.2°. The results also demonstrate a precision of the order 1° for more general illumination, such as dome illumination and ambient lighting, for certain material type/lens combinations. However, it is also shown that the precision varies considerably depending on illumination, lens choice and material type, with some results having errors above 2°. Finally, a feasibility study into the inspection of three-dimensional components suggests that only limited application is possible for non-planar regions without further research. Nevertheless, the observed phenomena for such components are, at least, qualitatively understood based on physics theory.
format	article
author	Gary A. Atkinson Sean O’Hara Nash Lyndon N. Smith
author_facet	Gary A. Atkinson Sean O’Hara Nash Lyndon N. Smith
author_sort	Gary A. Atkinson
title	Precision Fibre Angle Inspection for Carbon Fibre Composite Structures Using Polarisation Vision
title_short	Precision Fibre Angle Inspection for Carbon Fibre Composite Structures Using Polarisation Vision
title_full	Precision Fibre Angle Inspection for Carbon Fibre Composite Structures Using Polarisation Vision
title_fullStr	Precision Fibre Angle Inspection for Carbon Fibre Composite Structures Using Polarisation Vision
title_full_unstemmed	Precision Fibre Angle Inspection for Carbon Fibre Composite Structures Using Polarisation Vision
title_sort	precision fibre angle inspection for carbon fibre composite structures using polarisation vision
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/23d1147c1bcc4e5a87dc213e69cfeba3
work_keys_str_mv	AT garyaatkinson precisionfibreangleinspectionforcarbonfibrecompositestructuresusingpolarisationvision AT seanoharanash precisionfibreangleinspectionforcarbonfibrecompositestructuresusingpolarisationvision AT lyndonnsmith precisionfibreangleinspectionforcarbonfibrecompositestructuresusingpolarisationvision
_version_	1718412396171624448

Precision Fibre Angle Inspection for Carbon Fibre Composite Structures Using Polarisation Vision

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