PMID- 37960395 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231117 IS - 1424-8220 (Electronic) IS - 1424-8220 (Linking) VI - 23 IP - 21 DP - 2023 Oct 25 TI - A Novel Angle Segmentation Method for Magnetic Encoders Based on Filtering Window Adaptive Adjustment Using Improved Particle Swarm Optimization. LID - 10.3390/s23218695 [doi] LID - 8695 AB - In this paper we outline newly-developed control algorithms, designed to achieve high-precision feedback for a motor control system using a magnetic encoder. The magnetic encoder, combing single-pole and multi-pole magnetic steels, was adopted to extend the resolution of the magnetic encoder. First, with a view to settling the issue of the jump points of the multi-pole angle value at the convergence of two adjacent magnetic poles, the angle segmentation method, which uses the window filter discrimination method, is employed to determine the actual angle value. The appropriate filter window width is selected via the improved particle swarm optimization (IPSO) algorithm, and an expanded resolution is achieved. Second, a compensation table is completed via a linear compensation algorithm based on virtual cutting to enhance the accuracy of the combined magnetic encoder. On this basis, a linear difference algorithm is used to achieve deviation correction of the angle. Finally, the jump points can be restrained effectively via the angle segmentation method. The resolution reaches 0.05 degrees , and the accuracy is 0.045 degrees . FAU - Wang, Lei AU - Wang L AD - School of Mechanical and Power Engineering, Harbin University of Science and Technology, Harbin 150080, China. FAU - Wei, Xin AU - Wei X AD - School of Mechanical and Power Engineering, Harbin University of Science and Technology, Harbin 150080, China. FAU - Liang, Pengbo AU - Liang P AD - School of Mechanical and Power Engineering, Harbin University of Science and Technology, Harbin 150080, China. FAU - Zhang, Yongde AU - Zhang Y AUID- ORCID: 0000-0003-4602-1563 AD - School of Mechanical and Power Engineering, Harbin University of Science and Technology, Harbin 150080, China. FAU - Hao, Shuanghui AU - Hao S AD - School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China. LA - eng GR - 2022ZX01A19/Heilongjiang Key Research and Development Plan/ GR - LH2023E083/Heilongjiang Provincial Natural Science Foundation Joint Guidance Project/ PT - Journal Article DEP - 20231025 PL - Switzerland TA - Sensors (Basel) JT - Sensors (Basel, Switzerland) JID - 101204366 SB - IM PMC - PMC10649074 OTO - NOTNLM OT - accuracy OT - combined magnetic encoder OT - improved particle swarm optimization OT - resolution OT - virtual cutting COIS- The authors declare no conflict of interest. EDAT- 2023/11/14 06:43 MHDA- 2023/11/14 06:44 PMCR- 2023/10/25 CRDT- 2023/11/14 02:19 PHST- 2023/08/04 00:00 [received] PHST- 2023/09/23 00:00 [revised] PHST- 2023/09/29 00:00 [accepted] PHST- 2023/11/14 06:44 [medline] PHST- 2023/11/14 06:43 [pubmed] PHST- 2023/11/14 02:19 [entrez] PHST- 2023/10/25 00:00 [pmc-release] AID - s23218695 [pii] AID - sensors-23-08695 [pii] AID - 10.3390/s23218695 [doi] PST - epublish SO - Sensors (Basel). 2023 Oct 25;23(21):8695. doi: 10.3390/s23218695.