Facility and method for measuring the thickness of the walls of glass containers

    公开(公告)号:US12181266B2

    公开(公告)日:2024-12-31

    申请号:US17626167

    申请日:2020-07-10

    Applicant: TIAMA

    Abstract: A method for measuring the thickness of glass containers includes the following steps: choosing to measure the radiation emitted by the container from a first side and a second side of the container diametrically opposite to each other; choosing to measure the radiation emitted by the container in a first spectral band in a range between 2,800 nm and 4,000 nm and in a second spectral band; simultaneously measuring, from each side of the container, the intensity of the radiation coming from the walls in the first spectral band and in the second spectral band; and determining at least the thickness of the first wall and of the second wall (22), from the measurements of the intensity of the radiation coming from the first wall in the first and second spectral bands and from the second wall in the first and second spectral bands.

    Method and device for the detection in particular of refracting defects

    公开(公告)号:US09804099B2

    公开(公告)日:2017-10-31

    申请号:US15111493

    申请日:2015-01-21

    Applicant: TIAMA

    CPC classification number: G01N21/90

    Abstract: A method of inspecting containers (3) moving between a linear camera and a light source (7) presents continuous variation of light intensity with a periodic pattern (71) along at least one variation direction (D). According to the method, for each movement increment of the container, a sequence of N successive image lines of the container is acquired cyclically so that for each image line; the container (3) is illuminated by the light source (7); the image line of the container is acquired; and the periodic pattern (71) is shifted for the next line along the variation direction (D). For each increment of the container (3), at least one phase image line is calculated; and the phase image lines (LP(k)) are analyzed.

    Process, device and line of inspection for determination of a wire-edge at the site of an internal edge of a ring surface

    公开(公告)号:US11460414B2

    公开(公告)日:2022-10-04

    申请号:US17078253

    申请日:2020-10-23

    Applicant: TIAMA

    Abstract: An inspection device which is compatible with in-line inspection of containers and reliably determines the presence or not of a defect of a container, has a lighting system arranged above an installation zone and being capable of providing an incident light beam, an image sensor connected to an image-analysis unit, and an optical system with a first primary reflection surface arranged above the installation zone and interposed between the installation zone and the sensor for forming on the sensor an image of a container ring surface to be inspected. Also included is a second primary reflection surface in the upstream field of vision of the sensor to reflect light beams, directly or indirectly in the direction of the sensor. The first and second primary reflection surfaces determine first and second portions of a downstream field of vision, which overlap in the inspection zone.

    PROCESS, DEVICE AND LINE OF INSPECTION FOR DETERMINATION OF A WIRE-EDGE AT THE SITE OF AN INTERNAL EDGE OF A RING SURFACE

    公开(公告)号:US20210041374A1

    公开(公告)日:2021-02-11

    申请号:US17078253

    申请日:2020-10-23

    Applicant: TIAMA

    Abstract: An inspection device which is compatible with in-line inspection of containers and reliably determines the presence or not of a defect of a container, has a lighting system arranged above an installation zone and being capable of providing an incident light beam, an image sensor connected to an image-analysis unit, and an optical system with a first primary reflection surface arranged above the installation zone and interposed between the installation zone and the sensor for forming on the sensor an image of a container ring surface to be inspected. Also included is a second primary reflection surface in the upstream field of vision of the sensor to reflect light beams, directly or indirectly in the direction of the sensor. The first and second primary reflection surfaces determine first and second portions of a downstream field of vision, which overlap in the inspection zone.

    Method, device and inspection line for visualizing the flatness of a surface of a container ring

    公开(公告)号:US10184900B2

    公开(公告)日:2019-01-22

    申请号:US15518535

    申请日:2015-10-14

    Applicant: TIAMA

    Abstract: 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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