Slab geometry measuring
In the steel industry the entire geometry of slabs is measured without interruption and without contact at a maximum temperature of 600°C. The following dimensions are determined:
- Slab thickness over the slab width
- Slab width
- Slab length
- Slab conicity
- Slab wedge
- Slab deflection
- Slab inclination on the roller table
A special software controls the sensors and processes the original measuring data. Compressed measurement results are transferred to a master control for further processing.
A special software controls the sensors and processes the original measuring data. Compressed measurement results are transferred to a master control for further processing.
The following animation shows the arrangement of sensors:
As shown in the schematic diagram, the system consists of a pair of OPTIscan laser triangulation scanners - or alternatively a pair of OPTImess triangulation laser sensors - for measuring the width and two pairs of OPTIscan laser scanners for measuring the thickness. A non contact length sensor measures the length of the slab.
Two light barriers increase the accuracy of the length measurement and also start or end the measurement.
The system is controlled by a PC (operating system Windows NT 4); the scanning sensors are connected to the PC via serial interfaces ( RS485) and the point sensors via an analog interface. A card with 16 optodecoupled inputs and 16 optodecoupled outputs is used for digital signal exchange. The system is connected to the master computer system via a network card and the TCP/IP protocol.
