Astech GmbH, Warnemunde, Germany, specializes in non-contact, intervention-free speed measurement of strip, sections, bar and wire rod. The new generation of speed sensors for the steel industry is characterised by highly dynamic and at the same time high-precision operation.The company has now introduced its latest high-end model for differential speed measurements. The VLM 200 SD sensor with integrated signal processing and most different interfaces combined in a compact and robust unit, see figure, featuring highly integrated sets of chips is predominantly used in rolling mill environments for mass flow, tension/stretch or strip elongation control.
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