US 11,747,129 B2
Method for operating an absolute measuring position detection system having a single-track magnetic code object
Zoltan Kantor, Nemesvamos (HU); and Kolos Karoly, Aszofo (HU)
Assigned to BALLUFF GMBH, Neuhausen ADF (DE)
Filed by Balluff GmbH, Neuhausen a.d.F. (DE)
Filed on Mar. 12, 2021, as Appl. No. 17/200,183.
Claims priority of application No. 10 2020 107 229.5 (DE), filed on Mar. 17, 2020.
Prior Publication US 2021/0364269 A1, Nov. 25, 2021
Int. Cl. G01B 7/00 (2006.01); G01D 5/12 (2006.01); G06N 3/08 (2023.01)
CPC G01B 7/003 (2013.01) [G01D 5/12 (2013.01); G06N 3/08 (2013.01)] 14 Claims
OG exemplary drawing
 
1. Method for operating an absolute measuring position detection system having a sensor arrangement (100) and a single-track magnetic code object (105) with non-repeating code areas, wherein the sensor arrangement (100) is formed by a substantially linear arrangement of a plurality of magnetic field sensors (110), the method comprising:
determining a relative position of the sensor arrangement (100) with respect to the respective code object (105) by searching for a partial pattern (710, 720) of a detected magnetic field signal of a present complete measurement curve which is most similar to a predetermined pattern previously stored in a reference map based on magnetic curve progressions or magnetic patterns of magnetic field vector components (500, 505) detected by sensors for the entire code object (105) depending on the position on the code object (105).