Method for Measuring the Wall Thickness of a Hollow Glass Article

A method for checking the circumferential distribution of the wall thickness of a hollow glass article in a hollow glass production system, comprising at least one glass forming machine and a device for thermally treating the same, arranged downstream thereof in the passage direction of the hollow glass article, comprising devices for transporting the hollow glass article from the exit of the glass forming machine, this being the hot end of the glass production system, to the entrance of the device for thermal treatment and leading away from the exit thereof, this being the start of the cold end of the hollow glass production system, at least one IR camera being arranged at the hot end for recording areas of the distribution of the thermal overall radiation emitted by the hollow glass articles, characterized in that a circumferential rotational angle-dependent measurement of the distribution of the wall thickness of a hollow glass article is ascertained at the cold end, the circumferential distribution of the overall radiation of the hollow glass article is detected at the hot end and associated with the circumferential measurement of the wall thickness at the cold end, with the objective of establishing a functional dependence between the values of the distributions of the overall radiation and the wall thickness, so that the wall thickness progression can be identified in values based on the overall radiation at the hot end.