Pole positioning for precise magnetic measurement systems

Sebastian Rivera, Rolf Slatter

Abstract

Modern drive systems rely in terms of accuracy and robustness on the quality of the used position sensors. For high accuracy applications optical position sensors are dominating the market with a trend towards more magnetic systems as their robustness in the field is superior compared to the optical counterparts. While the sensor itself has a great impact on system accuracy, the used scale or pole wheel is of similar importance when evaluating system architectures. ITK presents in this paper a machine setup for high accuracy, single pole writing machines either for linear or rotary magnetic scales. Baseline for the software architecture is the newly released DIN SPEC 91411 which unifies the nomenclature for magnetic measurement system. In addition the paper focus on a systematic approach to also measure the magnetic accuracy. Furthermore, new developments in write head design are presented as new hard magnetic coatings require higher fields for magnetization.

Keywords

precision, magnetic, measurement, systems

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IMEKO-TC4-2023-19.pdf

DOI

10.21014/tc4-2023.19

IMEKO TC

TC4 - Measurement of Electrical Quantities

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