@inproceedings{RadschunJobstKanounetal.2017, author = {Mario Radschun and Annette Jobst and Olfa Kanoun and J{\"o}rg Himmel}, title = {Process Monitoring in Steel-Mills using Impedance Analysis: VNA Improvement for Data Acquisition}, year = {2017}, abstract = {The process automation extends over every manufacturing step of a product in the steel-mill to increase the quality, quantity and energy efficiency. The product dimensions are an important part of the quality control; these must maintain the specified tolerances. Additional to the cross-sectional-area, the measured data contains much more information about the manufacturing process, e.g. eccentricity, condition of the rolls and defects of the rod. For analyzing the measured data and to gather more information about the manufacturing process it is necessary to increase the speed of the data acquisition by performing some modifications of the VNA, e.g. faster analog to digital converter and microcontroller, improved firmware and optimized values of the passive electrical components for faster time constants and transient responses.}, language = {en} }