Cargando…
Towards ultimate low frequency air-core magnetometer sensitivity
Air-core magnetometers are amongst the most commonly used magnetic field detectors in biomedical instruments. They offer excellent sensitivity, low fabrication complexity and a robust, cost-effective solution. However, air-core magnetometers must be tailored to the specific application to achieve hi...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2017
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5442107/ https://www.ncbi.nlm.nih.gov/pubmed/28536460 http://dx.doi.org/10.1038/s41598-017-02099-z |
_version_ | 1783238337800175616 |
---|---|
author | Pellicer-Guridi, Ruben Vogel, Michael W. Reutens, David C. Vegh, Viktor |
author_facet | Pellicer-Guridi, Ruben Vogel, Michael W. Reutens, David C. Vegh, Viktor |
author_sort | Pellicer-Guridi, Ruben |
collection | PubMed |
description | Air-core magnetometers are amongst the most commonly used magnetic field detectors in biomedical instruments. They offer excellent sensitivity, low fabrication complexity and a robust, cost-effective solution. However, air-core magnetometers must be tailored to the specific application to achieve high sensitivity, which can be decisive in the accuracy of the diagnoses and the time required for the examination. Existing methods proposed for the design of air-core magnetometers are based on simplified models and simulations using a reduced number of variables, potentially leading to sensitivity that is suboptimal. To circumvent this we chose a method with fewer assumptions and a larger number of decision variables which employed a genetic algorithm, a global optimisation method. Experimental validation shows that the model is appropriate for the design of highly sensitive air-core magnetometers. Moreover, our results support the suitability of a genetic algorithm for optimization in this context. The new method described herein will be made publicly available via our website to facilitate the development of less costly biomedical instruments using air-core magnetometers with unprecedented sensitivity. |
format | Online Article Text |
id | pubmed-5442107 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-54421072017-05-25 Towards ultimate low frequency air-core magnetometer sensitivity Pellicer-Guridi, Ruben Vogel, Michael W. Reutens, David C. Vegh, Viktor Sci Rep Article Air-core magnetometers are amongst the most commonly used magnetic field detectors in biomedical instruments. They offer excellent sensitivity, low fabrication complexity and a robust, cost-effective solution. However, air-core magnetometers must be tailored to the specific application to achieve high sensitivity, which can be decisive in the accuracy of the diagnoses and the time required for the examination. Existing methods proposed for the design of air-core magnetometers are based on simplified models and simulations using a reduced number of variables, potentially leading to sensitivity that is suboptimal. To circumvent this we chose a method with fewer assumptions and a larger number of decision variables which employed a genetic algorithm, a global optimisation method. Experimental validation shows that the model is appropriate for the design of highly sensitive air-core magnetometers. Moreover, our results support the suitability of a genetic algorithm for optimization in this context. The new method described herein will be made publicly available via our website to facilitate the development of less costly biomedical instruments using air-core magnetometers with unprecedented sensitivity. Nature Publishing Group UK 2017-05-23 /pmc/articles/PMC5442107/ /pubmed/28536460 http://dx.doi.org/10.1038/s41598-017-02099-z Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Pellicer-Guridi, Ruben Vogel, Michael W. Reutens, David C. Vegh, Viktor Towards ultimate low frequency air-core magnetometer sensitivity |
title | Towards ultimate low frequency air-core magnetometer sensitivity |
title_full | Towards ultimate low frequency air-core magnetometer sensitivity |
title_fullStr | Towards ultimate low frequency air-core magnetometer sensitivity |
title_full_unstemmed | Towards ultimate low frequency air-core magnetometer sensitivity |
title_short | Towards ultimate low frequency air-core magnetometer sensitivity |
title_sort | towards ultimate low frequency air-core magnetometer sensitivity |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5442107/ https://www.ncbi.nlm.nih.gov/pubmed/28536460 http://dx.doi.org/10.1038/s41598-017-02099-z |
work_keys_str_mv | AT pellicerguridiruben towardsultimatelowfrequencyaircoremagnetometersensitivity AT vogelmichaelw towardsultimatelowfrequencyaircoremagnetometersensitivity AT reutensdavidc towardsultimatelowfrequencyaircoremagnetometersensitivity AT veghviktor towardsultimatelowfrequencyaircoremagnetometersensitivity |