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IMS Messsysteme as the world market leader for non-contact measuring systems also offers Aluminium Haot Rolling Mills and Aluminium Cold Rolling Mills an extensive product portfolio for various measuring tasks such as:
Thickness, thickness cross profile, width, coating, holes, edge cracks, slit strip width, pinholes, sheet geometry, evenness, flatness, surface inspection, strip tension and more.
WIDTH MEASURING SYSTEMS
WIDTH MEASURING SYSTEMS FOR ALUMINIUM HOT ROLLING MILLS WIDTH MEASURING SYSTEMS FOR ALUMINIUM HOT ROLLING MILLS Radar Width Measuring System Material Data Typical thickness range: > 5 up to 400 mm The radar width measuring system consists of two columnar system units positioned outside the roller table on opposite sides of the material to be measured. A part of the electromagnetic waves emitted is reflected by the material and received by two further, identical antennas. Speed: Width: > 0 - 3 m/s up to 4,000 mm Each unit has a radar sensor in which electromagnetic waves are generated and which are emitted by means of an antenna. The radar beams of both units are aimed at the outer edge of the material. The radar waves are frequency modulated. The difference in frequency between the radar waves emitted and received thus results in the distance to the reflection point or the exact distance to the material. Measuring System Data Gauge type: radar unit Sensor: radar sensor, carrier frequency 60 GHz Measuring Dynamics Cycle time data output: ≥ 1 ms Measuring Accuracy Reproducibility: ≤ 0.1 % Long term drift (10 hrs): ≤ 0.05 % Measurement Task Measuring accuracy: ≤ ± 0.5 mm • measurement of material width • measurement of centreline deviation Special Features • gauges are installed at a sufficient distance from the roller table (low temperature influence) • no need to build over the roller table • insensitive to water, steam and dust (outstanding advantage over optical measuring systems) • harmless to humans (in contrast to laser radiation) • maintenance-free measuring device 26 27
