Investigations on eddy current sensors regarding inline-capability of zinc coating monitoring using a model-based estimator

Martin Koll, Daniel Wöckinger, Christoph Dobler, Gereon Goldbeck, Gerd Bramerdorfer, Stefan Schuster, Stefan Scheiblhofer, Norbert Gstöttenbauer, Johann Reisinger

Research output: Contribution to journalArticlepeer-review

Abstract

This work deals with preliminary investigations for the reliable thickness determination of a conductive, nonmagnetic metal coating on ferromagnetic steels. For this purpose, an eddy current sensor system is used. Different analytical coil models are compared: a normal solenoid, a differential coil and a rectangular coil. Thus, a sensitivity analysis regarding interfering influences, e.g., liftoff fluctuations, is done. Based on this, the advantages and disadvantages of the analyzed coil geometries are discussed. Finally, an model-based estimator is used to determine the coating thickness from simulation data at different operating points.
Original languageEnglish
Article number171754
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Volume592
DOIs
Publication statusPublished - Feb 2024

Fields of science

  • 202 Electrical Engineering, Electronics, Information Engineering
  • 202009 Electrical drive engineering
  • 202011 Electrical machines
  • 202025 Power electronics
  • 202027 Mechatronics

JKU Focus areas

  • Digital Transformation
  • Sustainable Development: Responsible Technologies and Management

Cite this