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
Download:
IMEKO-TC4-2023-19.pdf
DOI:
10.21014/tc4-2023.19
Event details
IMEKO TC:
TC4
Event name:
TC4 Symposium 2023
Title:

26th IMEKO TC4 Symposium and 24th International Workshop on ADC and DAC Modelling and Testing (IWADC)

Place:
Pordenone, ITALY
Time:
20 September 2023 - 21 September 2023