In container glass production, wall thickness and roundness of the bottles are crucial quality features. This is why these parameters must be 100 % inspected. Any faulty containers are immediately rejected and returned to the glass melt. Due to high processing speeds and in order to prevent the bottles from being damaged, a fast, non-contact measurement procedure is required.
The confocal chromatic confocalDT 2422 dual-channel measurement system from Micro-Epsilon is ideally suited to this measurement task. Its measuring principle enables non-contact distance and thickness measurements of transparent materials while measuring synchronously on two points. Data is output in real time via an EtherCAT interface. The thickness calibration feature enables precise thickness measurements across the entire measuring range of the sensor. Automatic exposure control allows stable measurements regardless of the glass color.