Magnetic field sensor based on magnetic fluid-infiltrated phase-shifted fiber Bragg grating
A novel magnetic field sensor based on a magnetic fluid (MF)-infiltrated phase-shifted fiber Bragg grating (PS-FBG) is proposed and experimentally demonstrated. The PS-FBG is formed by two FBG sections with a micrometer-level gap between them which is filled with microfluidic MF. External magnetic f...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/140080 |
| _version_ | 1824456633163448320 |
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| author | Bao, Lifeng Dong, Xinyong Zhang, Shuqin Shen, Changyu Shum, Perry Ping |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Bao, Lifeng Dong, Xinyong Zhang, Shuqin Shen, Changyu Shum, Perry Ping |
| author_sort | Bao, Lifeng |
| collection | NTU |
| description | A novel magnetic field sensor based on a magnetic fluid (MF)-infiltrated phase-shifted fiber Bragg grating (PS-FBG) is proposed and experimentally demonstrated. The PS-FBG is formed by two FBG sections with a micrometer-level gap between them which is filled with microfluidic MF. External magnetic field changes refractive index and transmittance of the MF, leading to a magnetic-field-sensitive phase shift and hence wavelength shift of the transmission peak. Optical measurement of magnetic field strength is therefore achieved with a sensitivity of 2.42 pm/Oe within a range up to 120 Oe by monitoring wavelength shift of transmission spectrum of the MF-infiltrated PS-FBG. The micrometer-level action length of MF in this proposed sensor not only greatly reduces the consumption of MF but also brings forth a good potential for point detection of magnetic field distribution. |
| first_indexed | 2025-02-19T03:57:12Z |
| format | Journal Article |
| id | ntu-10356/140080 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:57:12Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1400802020-05-26T06:53:02Z Magnetic field sensor based on magnetic fluid-infiltrated phase-shifted fiber Bragg grating Bao, Lifeng Dong, Xinyong Zhang, Shuqin Shen, Changyu Shum, Perry Ping School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Magnetic Field Sensors Magnetic Fluid A novel magnetic field sensor based on a magnetic fluid (MF)-infiltrated phase-shifted fiber Bragg grating (PS-FBG) is proposed and experimentally demonstrated. The PS-FBG is formed by two FBG sections with a micrometer-level gap between them which is filled with microfluidic MF. External magnetic field changes refractive index and transmittance of the MF, leading to a magnetic-field-sensitive phase shift and hence wavelength shift of the transmission peak. Optical measurement of magnetic field strength is therefore achieved with a sensitivity of 2.42 pm/Oe within a range up to 120 Oe by monitoring wavelength shift of transmission spectrum of the MF-infiltrated PS-FBG. The micrometer-level action length of MF in this proposed sensor not only greatly reduces the consumption of MF but also brings forth a good potential for point detection of magnetic field distribution. 2020-05-26T06:53:02Z 2020-05-26T06:53:02Z 2018 Journal Article Bao, L., Dong, X., Zhang, S., Shen, C., & Shum, P. P. (2018). Magnetic field sensor based on magnetic fluid-infiltrated phase-shifted fiber Bragg grating. IEEE Sensors Journal, 18(10), 4008-4012. doi:10.1109/jsen.2018.2820741 1530-437X https://hdl.handle.net/10356/140080 10.1109/JSEN.2018.2820741 2-s2.0-85044766480 10 18 4008 4012 en IEEE Sensors Journal © 2018 IEEE. All rights reserved. |
| spellingShingle | Engineering::Electrical and electronic engineering Magnetic Field Sensors Magnetic Fluid Bao, Lifeng Dong, Xinyong Zhang, Shuqin Shen, Changyu Shum, Perry Ping Magnetic field sensor based on magnetic fluid-infiltrated phase-shifted fiber Bragg grating |
| title | Magnetic field sensor based on magnetic fluid-infiltrated phase-shifted fiber Bragg grating |
| title_full | Magnetic field sensor based on magnetic fluid-infiltrated phase-shifted fiber Bragg grating |
| title_fullStr | Magnetic field sensor based on magnetic fluid-infiltrated phase-shifted fiber Bragg grating |
| title_full_unstemmed | Magnetic field sensor based on magnetic fluid-infiltrated phase-shifted fiber Bragg grating |
| title_short | Magnetic field sensor based on magnetic fluid-infiltrated phase-shifted fiber Bragg grating |
| title_sort | magnetic field sensor based on magnetic fluid infiltrated phase shifted fiber bragg grating |
| topic | Engineering::Electrical and electronic engineering Magnetic Field Sensors Magnetic Fluid |
| url | https://hdl.handle.net/10356/140080 |
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