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 <inline-formula...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/13/12/2158 |
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| author | Kaixin Yuan Aimin Du Lin Zhao Shuquan Sun Xiao Feng Chenhao Zhang Yiming Zhang Huafeng Qin |
| author_facet | Kaixin Yuan Aimin Du Lin Zhao Shuquan Sun Xiao Feng Chenhao Zhang Yiming Zhang Huafeng Qin |
| author_sort | Kaixin Yuan |
| collection | DOAJ |
| 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 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>220</mn><mo> </mo></mrow></semantics></math></inline-formula>°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 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>220</mn><mo> </mo></mrow></semantics></math></inline-formula>°C by evaluating impedance, hysteresis, permeability and sensitivity. We found a sensitivity of approximately 24 kV/T at <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>25</mn><mo> </mo></mrow></semantics></math></inline-formula>°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. |
| first_indexed | 2024-03-09T16:05:27Z |
| format | Article |
| id | doaj.art-b34713c399d74b388cbe3a15710f7dec |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-09T16:05:27Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-b34713c399d74b388cbe3a15710f7dec2023-11-24T16:45:09ZengMDPI AGMicromachines2072-666X2022-12-011312215810.3390/mi13122158Ring-Core Fluxgate Sensor for High Operation Temperatures up to 220 °CKaixin Yuan0Aimin Du1Lin Zhao2Shuquan Sun3Xiao Feng4Chenhao Zhang5Yiming Zhang6Huafeng Qin7CAS Engineering Laboratory for Deep Resources Equipment and Technology, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, ChinaCAS Engineering Laboratory for Deep Resources Equipment and Technology, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, ChinaCAS Engineering Laboratory for Deep Resources Equipment and Technology, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, ChinaCAS Engineering Laboratory for Deep Resources Equipment and Technology, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, ChinaCAS Engineering Laboratory for Deep Resources Equipment and Technology, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, ChinaFaculty of Information Technology, Beijing University of Technology, Beijing 100124, ChinaFaculty of Information Technology, Beijing University of Technology, Beijing 100124, ChinaInnovation Academy for Earth Science, CAS, Beijing 100029, ChinaFluxgate 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 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>220</mn><mo> </mo></mrow></semantics></math></inline-formula>°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 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>220</mn><mo> </mo></mrow></semantics></math></inline-formula>°C by evaluating impedance, hysteresis, permeability and sensitivity. We found a sensitivity of approximately 24 kV/T at <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>25</mn><mo> </mo></mrow></semantics></math></inline-formula>°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.https://www.mdpi.com/2072-666X/13/12/2158fluxgateshigh temperaturedrilling devicemagnetic sensingring-core geometry |
| spellingShingle | Kaixin Yuan Aimin Du Lin Zhao Shuquan Sun Xiao Feng Chenhao Zhang Yiming Zhang Huafeng Qin Ring-Core Fluxgate Sensor for High Operation Temperatures up to 220 °C Micromachines fluxgates high temperature drilling device magnetic sensing ring-core geometry |
| 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 | fluxgates high temperature drilling device magnetic sensing ring-core geometry |
| url | https://www.mdpi.com/2072-666X/13/12/2158 |
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