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Hybrid Magnetic–Inductive Angular Sensor with 360° Range and Stray-Field Immunity
Magnetic and inductive sensors are the dominant technologies in angular position sensing for automotive applications. This paper introduces a new angular sensor: a hybrid concept combining the magnetic Hall and inductive principles. A magnetic Hall transducer provides an accurate angle from 0° to 18...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8954260/ https://www.ncbi.nlm.nih.gov/pubmed/35336321 http://dx.doi.org/10.3390/s22062153 |
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author | Brajon, Bruno Lugani, Lorenzo Close, Gael |
author_facet | Brajon, Bruno Lugani, Lorenzo Close, Gael |
author_sort | Brajon, Bruno |
collection | PubMed |
description | Magnetic and inductive sensors are the dominant technologies in angular position sensing for automotive applications. This paper introduces a new angular sensor: a hybrid concept combining the magnetic Hall and inductive principles. A magnetic Hall transducer provides an accurate angle from 0° to 180°, whereas an inductive transducer provides a coarse angle from 0° to 360°. For this novel concept, a hybrid target with a magnetic and inductive signature is also needed. Using the two principles at the same time enables superior performances, in terms of range, compactness and robustness, that are not possible when used separately. We realized and characterized a prototype. The prototype achieves a 360° range, has a high accuracy and is robust against mechanical misalignments, stray fields and stray metals. The measurement results demonstrate that the two sensing principles are completely independent, thereby opening the doors for hybrid optimum magnetic–inductive designs beyond the usual trade-offs (range vs. resolution, size vs. robustness to misalignment). |
format | Online Article Text |
id | pubmed-8954260 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-89542602022-03-26 Hybrid Magnetic–Inductive Angular Sensor with 360° Range and Stray-Field Immunity Brajon, Bruno Lugani, Lorenzo Close, Gael Sensors (Basel) Article Magnetic and inductive sensors are the dominant technologies in angular position sensing for automotive applications. This paper introduces a new angular sensor: a hybrid concept combining the magnetic Hall and inductive principles. A magnetic Hall transducer provides an accurate angle from 0° to 180°, whereas an inductive transducer provides a coarse angle from 0° to 360°. For this novel concept, a hybrid target with a magnetic and inductive signature is also needed. Using the two principles at the same time enables superior performances, in terms of range, compactness and robustness, that are not possible when used separately. We realized and characterized a prototype. The prototype achieves a 360° range, has a high accuracy and is robust against mechanical misalignments, stray fields and stray metals. The measurement results demonstrate that the two sensing principles are completely independent, thereby opening the doors for hybrid optimum magnetic–inductive designs beyond the usual trade-offs (range vs. resolution, size vs. robustness to misalignment). MDPI 2022-03-10 /pmc/articles/PMC8954260/ /pubmed/35336321 http://dx.doi.org/10.3390/s22062153 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Brajon, Bruno Lugani, Lorenzo Close, Gael Hybrid Magnetic–Inductive Angular Sensor with 360° Range and Stray-Field Immunity |
title | Hybrid Magnetic–Inductive Angular Sensor with 360° Range and Stray-Field Immunity |
title_full | Hybrid Magnetic–Inductive Angular Sensor with 360° Range and Stray-Field Immunity |
title_fullStr | Hybrid Magnetic–Inductive Angular Sensor with 360° Range and Stray-Field Immunity |
title_full_unstemmed | Hybrid Magnetic–Inductive Angular Sensor with 360° Range and Stray-Field Immunity |
title_short | Hybrid Magnetic–Inductive Angular Sensor with 360° Range and Stray-Field Immunity |
title_sort | hybrid magnetic–inductive angular sensor with 360° range and stray-field immunity |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8954260/ https://www.ncbi.nlm.nih.gov/pubmed/35336321 http://dx.doi.org/10.3390/s22062153 |
work_keys_str_mv | AT brajonbruno hybridmagneticinductiveangularsensorwith360rangeandstrayfieldimmunity AT luganilorenzo hybridmagneticinductiveangularsensorwith360rangeandstrayfieldimmunity AT closegael hybridmagneticinductiveangularsensorwith360rangeandstrayfieldimmunity |