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A low-cost and high-efficiency magnetic levitation stage based on Hall sensors.

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Title: A low-cost and high-efficiency magnetic levitation stage based on Hall sensors.
Authors: Huang, Zhiwei1 (AUTHOR) huangzw21@whu.edu.cn, Wang, Yibo1 (AUTHOR) yibowang@whu.edu.cn, Xu, Xianze1 (AUTHOR) xuxianze@whu.edu.cn, Xu, Fengqiu1 (AUTHOR) hncxu@whu.edu.cn
Source: Measurement Science & Technology. Jan2026, Vol. 37 Issue 4, p1-14. 14p.
Subjects: Magnetic suspension, Hall effect transducers, Trajectory measurements, Mechanical efficiency, Measuring instruments, Multi-degree of freedom
Abstract: Emerging maglev stage systems demonstrate significant ability in high-end control industrial manufacturing characterized by their non-contact operation and multi-degree-of-freedom motion capabilities. Conventional sensing and driving systems for maglev stages, however, are typically cost-prohibitive, limiting their broader application potential. To this end, this paper develops a low-cost and effective maglev stage system utilizing Hall sensors to construct the measurement system and high-efficiency H-bridge for current supply. Spatial positioning relationships are analyzed to define the motor position measurement strategy, and non-linear errors are calibrated in the measurement system. A principle prototype is constructed and experimentally validated. The results indicate that the translational and rotational motion resolutions of the stage reach 5 μ m and 50 μ rad , respectively, with trajectory tracking performance matching that of the stage using laser displacement sensors. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:Emerging maglev stage systems demonstrate significant ability in high-end control industrial manufacturing characterized by their non-contact operation and multi-degree-of-freedom motion capabilities. Conventional sensing and driving systems for maglev stages, however, are typically cost-prohibitive, limiting their broader application potential. To this end, this paper develops a low-cost and effective maglev stage system utilizing Hall sensors to construct the measurement system and high-efficiency H-bridge for current supply. Spatial positioning relationships are analyzed to define the motor position measurement strategy, and non-linear errors are calibrated in the measurement system. A principle prototype is constructed and experimentally validated. The results indicate that the translational and rotational motion resolutions of the stage reach 5 μ m and 50 μ rad , respectively, with trajectory tracking performance matching that of the stage using laser displacement sensors. [ABSTRACT FROM AUTHOR]
ISSN:09570233
DOI:10.1088/1361-6501/ae3200