Design of a magnetic encoder using Hall effect
We present the design of a magnetic encoder to measure angular position. The proposed encoder includes two Hall sensors in quadrature in a fixed platform. In addition, and over the sensors, there are two permanent magnets in a shaft. The relative motion between the fixed and the movable components g...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Universidad Distrital Francisco José de Caldas
2019-07-01
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| Series: | Visión Electrónica |
| Subjects: | |
| Online Access: | https://revistas.udistrital.edu.co/index.php/visele/article/view/15180 |
| Summary: | We present the design of a magnetic encoder to measure angular position. The proposed encoder includes two Hall sensors in quadrature in a fixed platform. In addition, and over the sensors, there are two permanent magnets in a shaft. The relative motion between the fixed and the movable components generate a voltage variation in the sensors, which serve to generate the approximation of the angular position. We detail the acquisition process and the linearization method, because we consider that these are the most important contributions of this work. Lastly, we show the application of the encoder in the position control of a direct current motor to show the performance of the encoder estimating fast and slow angular position changes. |
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| ISSN: | 1909-9746 2248-4728 |