Towards ultimate low frequency air-core magnetometer sensitivity

Abstract 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 a...

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Autores principales:	Ruben Pellicer-Guridi, Michael W. Vogel, David C. Reutens, Viktor Vegh
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/109a309292204dfe8b29c4223b0b5d4e
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spelling	oai:doaj.org-article:109a309292204dfe8b29c4223b0b5d4e2021-12-02T12:32:58ZTowards ultimate low frequency air-core magnetometer sensitivity10.1038/s41598-017-02099-z2045-2322https://doaj.org/article/109a309292204dfe8b29c4223b0b5d4e2017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-02099-zhttps://doaj.org/toc/2045-2322Abstract 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.Ruben Pellicer-GuridiMichael W. VogelDavid C. ReutensViktor VeghNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ruben Pellicer-Guridi Michael W. Vogel David C. Reutens Viktor Vegh Towards ultimate low frequency air-core magnetometer sensitivity
description	Abstract 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	article
author	Ruben Pellicer-Guridi Michael W. Vogel David C. Reutens Viktor Vegh
author_facet	Ruben Pellicer-Guridi Michael W. Vogel David C. Reutens Viktor Vegh
author_sort	Ruben Pellicer-Guridi
title	Towards ultimate low frequency air-core magnetometer sensitivity
title_short	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_sort	towards ultimate low frequency air-core magnetometer sensitivity
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/109a309292204dfe8b29c4223b0b5d4e
work_keys_str_mv	AT rubenpellicerguridi towardsultimatelowfrequencyaircoremagnetometersensitivity AT michaelwvogel towardsultimatelowfrequencyaircoremagnetometersensitivity AT davidcreutens towardsultimatelowfrequencyaircoremagnetometersensitivity AT viktorvegh towardsultimatelowfrequencyaircoremagnetometersensitivity
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Towards ultimate low frequency air-core magnetometer sensitivity

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