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METHODS, DEVICE AND LINE FOR VISUAL INSPECTION OF SURFACE FLATNESS OF CONTAINER RING
METHODS, DEVICE AND LINE FOR VISUAL INSPECTION OF SURFACE FLATNESS OF CONTAINER RING
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机译:容器环表面平整度视觉检查的方法,设备和生产线
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摘要
A method of visualizing the planeness of a ring surface of a container includes lighting the ring surface from above using a peripheral incident light beam having radial rays with specular reflection on the ring surface. An optical system is used to form a plane image of the ring surface on a sensor, with an optical geometrical transformation that converts a real height difference (dZ) into an image radial offset (dR) on the image, and the image radial offset (dR) corresponding to a unit real height difference (dZ) is greater than the image radial offset corresponding to a real radial offset of the same dimension. A device and an installation implementing the visualizing method is also disclosed.
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