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Ring-Core Fluxgate Sensor for High Operation Temperatures up to 220 °C

Fluxgate sensors are key devices for magnetic field surveys in geophysics. In areas such as deep drilling, fluxgate sensors may have to operate steadily at high temperatures for a prolonged period of time. We present an accordant ring-core type fluxgate sensor that is stable up to [Formula: see text...

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Detalles Bibliográficos
Autores principales: Yuan, Kaixin, Du, Aimin, Zhao, Lin, Sun, Shuquan, Feng, Xiao, Zhang, Chenhao, Zhang, Yiming, Qin, Huafeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9785734/
https://www.ncbi.nlm.nih.gov/pubmed/36557457
http://dx.doi.org/10.3390/mi13122158
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author Yuan, Kaixin
Du, Aimin
Zhao, Lin
Sun, Shuquan
Feng, Xiao
Zhang, Chenhao
Zhang, Yiming
Qin, Huafeng
author_facet Yuan, Kaixin
Du, Aimin
Zhao, Lin
Sun, Shuquan
Feng, Xiao
Zhang, Chenhao
Zhang, Yiming
Qin, Huafeng
author_sort Yuan, Kaixin
collection PubMed
description Fluxgate sensors are key devices for magnetic field surveys in geophysics. In areas such as deep drilling, fluxgate sensors may have to operate steadily at high temperatures for a prolonged period of time. We present an accordant ring-core type fluxgate sensor that is stable up to [Formula: see text] °C. The high temperature consistency is achieved by using an Fe-based nanocrystalline magnetic core, PEEK structural components, an epoxy resin wrapping, as well as a broadband short-circuited working mode. The sensor was characterized at various temperatures up to [Formula: see text] °C by evaluating impedance, hysteresis, permeability and sensitivity. We found a sensitivity of approximately 24 kV/T at [Formula: see text] °C with an acceptable temperature coefficient of 742 ppm/°C throughout the range. The variation law of magnetic characteristics and their influence mechanism on output amplitude and phase are discussed.
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spelling pubmed-97857342022-12-24 Ring-Core Fluxgate Sensor for High Operation Temperatures up to 220 °C Yuan, Kaixin Du, Aimin Zhao, Lin Sun, Shuquan Feng, Xiao Zhang, Chenhao Zhang, Yiming Qin, Huafeng Micromachines (Basel) Article Fluxgate sensors are key devices for magnetic field surveys in geophysics. In areas such as deep drilling, fluxgate sensors may have to operate steadily at high temperatures for a prolonged period of time. We present an accordant ring-core type fluxgate sensor that is stable up to [Formula: see text] °C. The high temperature consistency is achieved by using an Fe-based nanocrystalline magnetic core, PEEK structural components, an epoxy resin wrapping, as well as a broadband short-circuited working mode. The sensor was characterized at various temperatures up to [Formula: see text] °C by evaluating impedance, hysteresis, permeability and sensitivity. We found a sensitivity of approximately 24 kV/T at [Formula: see text] °C with an acceptable temperature coefficient of 742 ppm/°C throughout the range. The variation law of magnetic characteristics and their influence mechanism on output amplitude and phase are discussed. MDPI 2022-12-07 /pmc/articles/PMC9785734/ /pubmed/36557457 http://dx.doi.org/10.3390/mi13122158 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
Yuan, Kaixin
Du, Aimin
Zhao, Lin
Sun, Shuquan
Feng, Xiao
Zhang, Chenhao
Zhang, Yiming
Qin, Huafeng
Ring-Core Fluxgate Sensor for High Operation Temperatures up to 220 °C
title Ring-Core Fluxgate Sensor for High Operation Temperatures up to 220 °C
title_full Ring-Core Fluxgate Sensor for High Operation Temperatures up to 220 °C
title_fullStr Ring-Core Fluxgate Sensor for High Operation Temperatures up to 220 °C
title_full_unstemmed Ring-Core Fluxgate Sensor for High Operation Temperatures up to 220 °C
title_short Ring-Core Fluxgate Sensor for High Operation Temperatures up to 220 °C
title_sort ring-core fluxgate sensor for high operation temperatures up to 220 °c
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9785734/
https://www.ncbi.nlm.nih.gov/pubmed/36557457
http://dx.doi.org/10.3390/mi13122158
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