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The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the Physical Activity for Health Group based within the School of Psychological Sciences & Health. Research here seeks to better understand how and why physical activity improves health, gain a better understanding of the amount, intensity, and type of physical activity needed for health benefits, and evaluate the effect of interventions to promote physical activity.

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A simple defect detection technique for high speed roll-to-roll manufacturing

Krysinski, Adam and Coupland, Jeremy and Leach, Richard and Flockhart, Gordon M. H. (2014) A simple defect detection technique for high speed roll-to-roll manufacturing. In: 14th euspen International Conference, 2014-06-02 - 2014-06-06. (Unpublished)

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Abstract

A prototype industrial defect inspection system, which can operate at speeds of up to 1 ms-1 and over web widths of 500 mm, is being developed at the National Physical Laboratory for roll-to-roll manufacturing of highly-transparent materials. The prototype is designed to detect defects with lateral dimensions larger than 10 μm. The findings of a feasibility study for a sensor based on dark-field imaging principles are presented. The design of the sensor is introduced and the results of a preliminary characterisation are discussed. Off-the-shelf equipment was used including a monochromatic CMOS sensor paired with a telecentric lens. The illumination was supplied from a high-power LED and a range of illumination wavelengths was used. The characterisation was performed on custom-made transparent polymer artefacts and the results are presented.