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A Giant Magneto-Strictive Material-Based Fabry–Perot Interferometer-Type 3D Vector Magnetic Field Sensor.

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Title: A Giant Magneto-Strictive Material-Based Fabry–Perot Interferometer-Type 3D Vector Magnetic Field Sensor.
Authors: Yu, Ze1 (AUTHOR), Liu, Dongran2 (AUTHOR), Su, Chunbo1,2 (AUTHOR), Qiao, Yingjie1,2 (AUTHOR), Wang, Xiaodong1 (AUTHOR) wangxiaodong@hrbeu.edu.cn, Geng, Tao2 (AUTHOR) gengtao_hit_oe@126.com
Source: Nanomaterials (2079-4991). Mar2026, Vol. 16 Issue 5, p323. 13p.
Subjects: Fabry-Perot interferometers, Magnetostriction, Magnetic field measurements, Strain sensors, Carbon dioxide lasers, Magnetic sensors, Optical fiber detectors
Abstract: This paper presents the design and experimental validation of a highly sensitive vector magnetic field sensor based on three mutually orthogonal Fabry–Perot interferometers (FPIs). The orthogonally arranged FPIs are bonded to a giant magneto-strictive material (GMM) block. Under an applied magnetic field, the magneto-strictively induced strain in the GMM block is transferred to the FPIs. Meanwhile, the FPIs, composed of single-mode fiber (SMF)–hollow-core fiber (HCF)–SMF, are further modulated by CO2 laser, by which the higher sensitivities are obtained. The highest sensitivities of FPIs achieved 245.13, 159.06, and 168.59 pm/mT on the X-Y, X-Z, and Y-Z planes, respectively. By demodulating the distinct wavelength drifts of the three orthogonal FPIs, both the magnitude and direction of the magnetic field can be simultaneously determined. [ABSTRACT FROM AUTHOR]
Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Label: Title
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  Data: A Giant Magneto-Strictive Material-Based Fabry–Perot Interferometer-Type 3D Vector Magnetic Field Sensor.
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  Data: <searchLink fieldCode="AR" term="%22Yu%2C+Ze%22">Yu, Ze</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Dongran%22">Liu, Dongran</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Su%2C+Chunbo%22">Su, Chunbo</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Qiao%2C+Yingjie%22">Qiao, Yingjie</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Xiaodong%22">Wang, Xiaodong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> wangxiaodong@hrbeu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Geng%2C+Tao%22">Geng, Tao</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> gengtao_hit_oe@126.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Nanomaterials+%282079-4991%29%22">Nanomaterials (2079-4991)</searchLink>. Mar2026, Vol. 16 Issue 5, p323. 13p.
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  Data: <searchLink fieldCode="DE" term="%22Fabry-Perot+interferometers%22">Fabry-Perot interferometers</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetostriction%22">Magnetostriction</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+field+measurements%22">Magnetic field measurements</searchLink><br /><searchLink fieldCode="DE" term="%22Strain+sensors%22">Strain sensors</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+dioxide+lasers%22">Carbon dioxide lasers</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+sensors%22">Magnetic sensors</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+fiber+detectors%22">Optical fiber detectors</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This paper presents the design and experimental validation of a highly sensitive vector magnetic field sensor based on three mutually orthogonal Fabry–Perot interferometers (FPIs). The orthogonally arranged FPIs are bonded to a giant magneto-strictive material (GMM) block. Under an applied magnetic field, the magneto-strictively induced strain in the GMM block is transferred to the FPIs. Meanwhile, the FPIs, composed of single-mode fiber (SMF)–hollow-core fiber (HCF)–SMF, are further modulated by CO2 laser, by which the higher sensitivities are obtained. The highest sensitivities of FPIs achieved 245.13, 159.06, and 168.59 pm/mT on the X-Y, X-Z, and Y-Z planes, respectively. By demodulating the distinct wavelength drifts of the three orthogonal FPIs, both the magnitude and direction of the magnetic field can be simultaneously determined. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3390/nano16050323
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        Text: English
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        PageCount: 13
        StartPage: 323
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      – SubjectFull: Fabry-Perot interferometers
        Type: general
      – SubjectFull: Magnetostriction
        Type: general
      – SubjectFull: Magnetic field measurements
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      – SubjectFull: Strain sensors
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      – SubjectFull: Carbon dioxide lasers
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      – SubjectFull: Magnetic sensors
        Type: general
      – SubjectFull: Optical fiber detectors
        Type: general
    Titles:
      – TitleFull: A Giant Magneto-Strictive Material-Based Fabry–Perot Interferometer-Type 3D Vector Magnetic Field Sensor.
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            NameFull: Yu, Ze
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            NameFull: Liu, Dongran
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            NameFull: Su, Chunbo
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            NameFull: Qiao, Yingjie
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            NameFull: Wang, Xiaodong
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            – D: 01
              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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