METHOD AND DEVICE FOR MEASURING DIMENSIONS USING X-RAY RADIATION OF EMPTY GLASS VESSELS MOVED ALONG A CONVEYOR Russian patent published in 2022 - IPC G01B15/02 

FIELD: measuring equipment; measurement technology.

SUBSTANCE: use for measurement of dimensions of empty glass vessels. Summary of invention consists in the fact that at least one inspected area containing at least part of neck and/or part of vessel body is selected; transporting the vessels placed on their bottom in the transportation plane (Pc), along a flat trajectory, with the direction materialized through the displacement vector (T), wherein vessels form transported volume (Vt) during their movement; on both sides of the inspected area, at least one focus (Fj) of the X-ray tube and X-ray sensors (Cji) are placed, and each of the sensors is irradiated with X-ray radiation obtained from the associated focus (Fj), wherein the X-ray radiation passing through at least the inspected area creates on each image sensor a radiographic projection in the projection direction (Dji); collecting data using image sensors (Cji) for each vessel during its movement, at least three radiographic images of the inspected area obtained from at least three radiographic projections of the inspected area, wherein their projection directions are different; creating, using a computer system, a digital geometric model of the inspected area for each vessel based on at least three radiographic images, wherein said geometric model comprises three-dimensional coordinates of a plurality of points calculated from said at least three radiographic images, wherein said plurality of points belongs to the inner and/or outer surface of the vessel wall, wherein the at least two points are located in a plane not orthogonal to the direction (Dji) of the projection, obtaining at least one internal diameter of the neck, measured from the model in a plane not orthogonal to the direction (Dji) of the projection, and/or at least one thickness of the wall of the housing, measured from the model in a plane not orthogonal to the direction (Dji) of the projection.

EFFECT: providing the possibility to perform accurate measurements of the size of vessels moved in the process line at high speed.

39 cl, 15 dwg