Two-Dimensional Position Tracking Using Gradient Magnetic Fields
In this work, a two-dimensional (2D) position-detection device using a single axis magnetic sensor combined with orthogonal gradient coils was designed and fabricated. The sensors used were an induction coil and a GMR spin-valve sensor GF807 from Sensitec Inc. The field profiles generated by the two...
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| Format: | Article |
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MDPI AG
2022-07-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/14/5459 |
| _version_ | 1827604158333583360 |
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| author | Xuan Thang Trinh Jen-Tzong Jeng Huu-Thang Nguyen Van Su Luong Chih-Cheng Lu |
| author_facet | Xuan Thang Trinh Jen-Tzong Jeng Huu-Thang Nguyen Van Su Luong Chih-Cheng Lu |
| author_sort | Xuan Thang Trinh |
| collection | DOAJ |
| description | In this work, a two-dimensional (2D) position-detection device using a single axis magnetic sensor combined with orthogonal gradient coils was designed and fabricated. The sensors used were an induction coil and a GMR spin-valve sensor GF807 from Sensitec Inc. The field profiles generated by the two orthogonal gradient coils were analyzed numerically to achieve the maximum linear range, which corresponded to the detection area of the tracking system. The two coils were driven by 1-kHz sine wave currents with a 90° phase difference to generate the fields with uniform gradients along the <i>x</i>- and <i>y</i>-axis in the plane of the tracking stage. The gradient fields were detected by a single-axis sensor incorporated with a digital dual-phase lock-in detector to retrieve the position information. A linearity correction algorithm was used to improve the location accuracy and to extend the linear range for position sensing. The mean positioning error was found to be 0.417 mm, corresponding to the relative error of 0.21% in the working range of 200 mm × 200 mm, indicating that the proposed tracking system is promising for applications requiring accurate control of the two-dimensional position. |
| first_indexed | 2024-03-09T05:55:05Z |
| format | Article |
| id | doaj.art-346aa7a17e91427dae0b7ac1f884a779 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T05:55:05Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-346aa7a17e91427dae0b7ac1f884a7792023-12-03T12:14:01ZengMDPI AGSensors1424-82202022-07-012214545910.3390/s22145459Two-Dimensional Position Tracking Using Gradient Magnetic FieldsXuan Thang Trinh0Jen-Tzong Jeng1Huu-Thang Nguyen2Van Su Luong3Chih-Cheng Lu4Faculty of Mechanical Engineering, Hung Yen University of Technology and Education, Hungyen 160000, VietnamDepartment of Mechanical Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 807618, TaiwanDepartment of Mechanical Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 807618, TaiwanFaculty of Electrical and Electronic Engineering, Phenikaa University, Hanoi 12116, VietnamInstitute of Mechatronics Engineering, National Taipei University of Technology, Taipei 106344, TaiwanIn this work, a two-dimensional (2D) position-detection device using a single axis magnetic sensor combined with orthogonal gradient coils was designed and fabricated. The sensors used were an induction coil and a GMR spin-valve sensor GF807 from Sensitec Inc. The field profiles generated by the two orthogonal gradient coils were analyzed numerically to achieve the maximum linear range, which corresponded to the detection area of the tracking system. The two coils were driven by 1-kHz sine wave currents with a 90° phase difference to generate the fields with uniform gradients along the <i>x</i>- and <i>y</i>-axis in the plane of the tracking stage. The gradient fields were detected by a single-axis sensor incorporated with a digital dual-phase lock-in detector to retrieve the position information. A linearity correction algorithm was used to improve the location accuracy and to extend the linear range for position sensing. The mean positioning error was found to be 0.417 mm, corresponding to the relative error of 0.21% in the working range of 200 mm × 200 mm, indicating that the proposed tracking system is promising for applications requiring accurate control of the two-dimensional position.https://www.mdpi.com/1424-8220/22/14/5459position trackinginduction coilgradient magnetic fieldsmagnetic tracking |
| spellingShingle | Xuan Thang Trinh Jen-Tzong Jeng Huu-Thang Nguyen Van Su Luong Chih-Cheng Lu Two-Dimensional Position Tracking Using Gradient Magnetic Fields Sensors position tracking induction coil gradient magnetic fields magnetic tracking |
| title | Two-Dimensional Position Tracking Using Gradient Magnetic Fields |
| title_full | Two-Dimensional Position Tracking Using Gradient Magnetic Fields |
| title_fullStr | Two-Dimensional Position Tracking Using Gradient Magnetic Fields |
| title_full_unstemmed | Two-Dimensional Position Tracking Using Gradient Magnetic Fields |
| title_short | Two-Dimensional Position Tracking Using Gradient Magnetic Fields |
| title_sort | two dimensional position tracking using gradient magnetic fields |
| topic | position tracking induction coil gradient magnetic fields magnetic tracking |
| url | https://www.mdpi.com/1424-8220/22/14/5459 |
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