期刊
ELECTRONICS
卷 10, 期 22, 页码 -出版社
MDPI
DOI: 10.3390/electronics10222765
关键词
polarisation; carbon fibre composites; component inspection
资金
- Digital Engineering Technology & Innovation (DETI) programme
- National Composites Centre, Bristol UK [PoC3.10]
- University of the West of England
- West of England Combined Authority
- National Composites Centre and industry
This paper evaluates the precision of polarisation imaging technology for the inspection of carbon fibre composite components, showing sub-degree accuracy can be obtained in ideal conditions. The precision varies depending on illumination, lens choice and material type, with limited application for non-planar regions in three-dimensional component inspection.
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 & DEG;. The results also demonstrate a precision of the order 1 & DEG; 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 & DEG;. 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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据