Position Sensors with Inherent Quantitative Self-Validation
Konferenz: Sensoren und Messsysteme - 19. ITG/GMA-Fachtagung
26.06.2018 - 27.06.2018 in Nürnberg, Deutschland
Tagungsband: ITG-Fb. 281: Sensoren und Messsysteme
Seiten: 4Sprache: EnglischTyp: PDFPersönliche VDE-Mitglieder erhalten auf diesen Artikel 10% Rabatt
Roos, Markus (NM Numerical Modelling GmbH, Zug, Switzerland)
Position sensors are used in countless automotive, industrial, and consumer applications. One of their drawbacks is the sensitivity to short and long-term deteriorations leading to inaccuracies in the position detection. In this paper we present a novel method for the Calibration and Operation Based on ROtational Symmetry (COBROS), i.e., a method to determine the position and to detect its inaccuracies, whereby the error indicator is quantitative. Therefore our method provides the position information alongside with its error. This self-monitoring and self-validation of position sensors is particularly valuable for safety-relevant applications. Additionally, the method is easy to implement into existing position sensor solutions. In fact, all major magnetic, inductive, electro-static, and optical position sensors, as well as resolvers, and encoders are ready to use COBROS.