Radar Solutions for Harsh Environmental Conditions

by Dr. Bettina Fischer, Aandreas Goeke

Publisher - IMS Messsysteme GmbH, Germany.

Category - Engineering & IT

IMS Messsysteme GmbH in cooperation with the Fraunhofer FHR has developed the first width measurement system based on radar technology for hot rolling mills. In contrast to laser radiation or light, radar waves are insensitive to steam and dust. Therefore, the system allows for width measurement under harsh environmental conditions, where the use of other measurement technologies is difficult or not possible at all. As the radiation intensity is low, no safety precautions are required. First, a prototype system operating at 30 GHz was successfully tested in the field. Afterwards, a 60 GHz system operating in a free frequency band was developed. The new system was integrated at the roughing stand of the hot rolling mill of Salzgitter Flachstahl GmbH. In this paper, results of laboratory measurements and of field tests with the 60 GHz radar are presented. The new radar system is shown to provide the same robustness and low maintenance effort at the 30 GHz radar. Moreover, it offers higher measurement accuracy due to its larger bandwidth. Furthermore, implementation is facilitated by the smaller size of the antennas.

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