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Velocity Measurement in Rolling Mills using Impedance Analysis

  • Rolling mills are continually improved and opti-mized by implementing innovative technology to decrease costs and scrap. Despite of the progressive automation and experience, some important process parameters can still not be determined with sufficient accuracy. As part of the research project PIREF, the velocity of the hot rolled rod shall be measured by using im-pedance analysis to estimate the volumetric flow rate of the mate-rial. For a high accuracy measurement of the impedance, a pow-erful VNA is used. To minimize errors in the measurement, caused by e.g. temperature drift, a correction of the measurement fre-quency is needed. This must be achieved without recalibration of the VNA to avoid faulty behavior of the online control. To solve this problem, an approach based on a polynomial regression is presented in this work.

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Metadaten
Author:Mario Radschun, Annette Jobst, Olfa Kanoun, Jörg Himmel
URL:https://www.researchgate.net/publication/336578021_Velocity_Measurement_in_Rolling_Mills_using_Impedance_Analysis
Document Type:Conference Proceeding
Language:English
Year of Completion:2018
Release Date:2020/03/02
Institutes:Fachbereich 4 - Institut Mess- und Senstortechnik
DDC class:600 Technik, Medizin, angewandte Wissenschaften / 621.3 Elektrotechnik, Elektronik
Licence (German):License LogoNo Creative Commons