Abstract: The invention relates to a method and an installation for automatically measuring linear dimensions of manufactured objects (2) of a series comprising: the disposition of at least one focal point (Fj) of X-rays, on a same base straight line parallel to the rectilinear trajectory of displacement of the objects and of one or several image sensors (Ci); the acquisition, for each object during its displacement, of a set of one-dimensional images comprising, for a number (NK) of distinct section planes (Pk) containing the base straight line, a number (NP) of said images obtained along at least three different directions of projection (Dijk) in the section plane; for each object, and for each distinct section plane (Pk), the determination, from the images obtained, of a delineation of the object in the considered section plane (Pk).

Abstract: An inspection line comprises: at a finish inspection station, a finish inspection installation capable of detecting without contact, by light rays, check-type defects in the neck of the containers; at a base inspection station, a base inspection installation capable of detecting without contact, by light rays, check-type defects in the base of the containers; and at a radiographic measuring station, a radiographic installation for automatically measuring linear dimensions of at least one region to be inspected of containers. The three installations are each arranged at stations distinct from each other along a trajectory of displacement of the containers. In each installation, a section of the transport device ensures, in the inspection area of the installation, the transport of the containers along a rectilinear portion of the trajectory (T) in a horizontal conveying plane (Pc) perpendicular to the central axis of the containers.

Abstract: The invention relates to a device for inspecting in transmission glass-wall containers (2) including at least one driven elementary source (5) constituted by a light-emitting diode (6) with at least two juxtaposed dies (7) emitting light radiation in different spectral emission bands which are a function of the transmission spectra of families of glass container tints, each spectral emission band of a die being limited to a spectral transmission band (Zt) suitable for the inspection in transmission for at least one family of glass container tints, excluding the spectral absorption bands (Za) for this family of glass container tints and in that the device comprises an electronic power supply device (15) independently controlling each die (7) of each elementary source (3).

Abstract: A station for detecting glass disease-type defects in a segment of containers includes: a non-deformable support on which the projectors and the imagers are mounted by a complete connection so as to fix beam directions of the projectors and the optical axes of the imagers; several sets of projectors each include at least six projectors whose beam direction is tangent to a cylinder with a diameter included in a determined range of diameters; an electronic system configured to inspect the containers falling within all of the ranges of diameters, such that during inspection of the containers whose segment diameter to be inspected is included in the range of diameters of a set, the electronic system ensures acquisition of at least six images of each container when it passes through the inspection area by selectively activating the at least six imagers simultaneously with the associated projectors of said set.

Abstract: The invention concerns a method for measuring the dimensions of empty glass containers (2) consisting in: selecting at least one region to be inspected of the container, transporting the containers, positioning, on either side of the region to be inspected, at least one focus of an X-ray generator tube and image sensors, acquiring, using image sensors, for each container during its displacement, at least three radiographic images of the inspected region, analyzing the at least three radiographic images so as to determine the three-dimensional coordinates of a set of points to deduce at least one inner diameter of the neck and/or one thickness of the body.

Abstract: A measurement method comprises acquiring, using image sensors (Cji) for each object during its displacement, at least three radiographic images of the region to be inspected. The images are obtained from at least three radiographic projections of the region to be inspected, the directions of projection (Dji) of which are different from each other. A computer system is provided with an a priori geometric model of the region to be inspected for the series of objects. Using the computer system and considering a constant attenuation coefficient and, from the a priori geometric model, at least three radiographic images of the region to be inspected, a digital geometric model of the region to be inspected is determined. For each object of the series, from the digital geometric model of the region to be inspected, at least one linear dimension measurement of the region to be inspected is determined.

Abstract: The invention relates to a method and an installation for automatically measuring linear dimensions of manufactured objects (2) of a series comprising: the disposition of at least one focal point (Fj) of X-rays, on a same base straight line parallel to the rectilinear trajectory of displacement of the objects and of one or several image sensors (Ci); the acquisition, for each object during its displacement, of a set of one-dimensional images comprising, for a number (NK) of distinct section planes (Pk) containing the base straight line, a number (NP) of said images obtained along at least three different directions of projection (Dijk) in the section plane; for each object, and for each distinct section plane (Pk), the determination, from the images obtained, of a delineation of the object in the considered section plane (Pk).

Abstract: An inspection line comprises: at a finish inspection station, a finish inspection installation capable of detecting without contact, by light rays, check-type defects in the neck of the containers; at a base inspection station, a base inspection installation capable of detecting without contact, by light rays, check-type defects in the base of the containers; and at a radiographic measuring station, a radiographic installation for automatically measuring linear dimensions of at least one region to be inspected of containers. The three installations are each arranged at stations distinct from each other along a trajectory of displacement of the containers. In each installation, a section of the transport device ensures, in the inspection area of the installation, the transport of the containers along a rectilinear portion of the trajectory (T) in a horizontal conveying plane (Pc) perpendicular to the central axis of the containers.

Abstract: A method of determining the capacity of containers (1) comprises using an X-ray computed-tomography apparatus (10) to acquire a plurality of X-ray images (I) of the container at different projection angles. The X-ray images are analyzed in order to construct a model of the container from the X-ray images, determine the inside surface of the digital model of the container, position a filling level plane on the digital model of the container parallel to the support surface and at a nominal distance from the top of the digital model of the container, and measure by calculation the inside volume of the digital model of the container as defined by the inside surface of the digital model and by the filling level plane, the measurement being the filling capacity of the container.

Abstract: The invention concerns a method for measuring the dimensions of empty glass containers (2) consisting in: selecting at least one region to be inspected of the container, transporting the containers, positioning, on either side of the region to be inspected, at least one focus of an X-ray generator tube and image sensors, acquiring, using image sensors, for each container during its displacement, at least three radiographic images of the inspected region, analyzing the at least three radiographic images so as to determine the three-dimensional coordinates of a set of points to deduce at least one inner diameter of the neck and/or one thickness of the body.

Abstract: The invention relates to a method of determining the capacity of containers (1), the method consisting in using an X-ray computed-tomography apparatus (10) to acquire a plurality of X-ray images (I) of the container at different projection angles. According to the invention, the X-ray images are analyzed in order to: construct a model of the container from the X-ray images; determine the inside surface of the digital model of the container; position a filling level plane on the digital model of the container parallel to the support surface and at a nominal distance from the top of the digital model of the container; and measure by calculation the inside volume of the digital model of the container as defined by the inside surface of the digital model and by the filling level plane, this measurement being the filling capacity of the container.

Abstract: A method for controlling a process for forming glass containers (2) includes the steps of extracting a so-called sample container, acquiring by means of a tomography apparatus (30) several X-ray images of the sample container from different projection angles, sending the X-ray images to a computer (38), and analyzing the X-ray images using a computer. A three-dimensional digital model of the sample container is constructed in a virtual reference frame on the basis of the X-ray images. The position of the three-dimensional digital model with respect to the position of the sample container in a mold reference frame is determined and the three-dimensional digital model is analyzed to determine at least one quality indicator (A) of the sample container.

Abstract: A measurement method comprises acquiring, using image sensors (Cji) for each object during its displacement, at least three radiographic images of the region to be inspected. The images are obtained from at least three radiographic projections of the region to be inspected, the directions of projection (Dji) of which are different from each other. A computer system is provided with an a priori geometric model of the region to be inspected for the series of objects. Using the computer system and considering a constant attenuation coefficient and, from the a priori geometric model, at least three radiographic images of the region to be inspected, a digital geometric model of the region to be inspected is determined. For each object of the series, from the digital geometric model of the region to be inspected, at least one linear dimension measurement of the region to be inspected is determined.