Quasi-Distributed Magnetic Field Fiber Sensors Integrated with Magnetostrictive Rod in OFDR System

Sun, Ruoqi1; Zhang, Liang1; Wei, Heming1; Gu, Yunzhe1; Pang, Fufei1; Liu, Huanhuan2; Wang, Tingyun1

2022-04-01

10.3390/electronics11071013

ELECTRONICS   影响因子和分区

2079-9292

We have proposed and designed a fiber-optic magnetic field sensors based on magnetostriction, of which the magnetostrictive induced strain of magnetostrictive rod attached to an optical fiber can be measured by optical frequency-domain reflectometry (OFDR). By analyzing the stress transfer process at the interface between the magnetostrictive rod and the sensing optical fiber, we find that the sensor sensitivity is mainly related to the magnetostrictive material and bond width. The experimental results show the sensor performance under different magnetostrictive rods and radiuses. The sensitivity of the Fe-Ga-based sensor is up to 5.05 mu epsilon /mT, while the sensitivity of the Tb-Dy-Fe-based sensor is up to 3.42 mu epsilon /mT. The proposed sensor can easily construct a sensor network for quasi-distributed fiber-optic magnetic field sensing, which can be used to monitor magnetic fields at more than one point.

magnetic field sensor fiber-optic sensors magnetostriction optical frequency-domain reflectometry

SCI

英语

其他

National Natural Science Foundation of China[61975108,61875118,62005153] ; Science and Technology Commission of Shanghai Municipality["20ZR1420300","20ZR1420800"] ; 111 Project[D20031]

Computer Science ; Engineering ; Physics

Computer Science, Information Systems ; Engineering, Electrical & Electronic ; Physics, Applied

WOS:000781449300001

MDPI

Web of Science

1.Shanghai Univ, Key Lab Specialty Fiber Opt & Opt Access Networks, Joint Int Res Lab Specialty Fiber Opt & Adv Commu, Shanghai 200444, Peoples R China
2.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China

Sun, Ruoqi,Zhang, Liang,Wei, Heming,et al. Quasi-Distributed Magnetic Field Fiber Sensors Integrated with Magnetostrictive Rod in OFDR System[J]. ELECTRONICS,2022,11(7).

Sun, Ruoqi.,Zhang, Liang.,Wei, Heming.,Gu, Yunzhe.,Pang, Fufei.,...&Wang, Tingyun.(2022).Quasi-Distributed Magnetic Field Fiber Sensors Integrated with Magnetostrictive Rod in OFDR System.ELECTRONICS,11(7).

Sun, Ruoqi,et al."Quasi-Distributed Magnetic Field Fiber Sensors Integrated with Magnetostrictive Rod in OFDR System".ELECTRONICS 11.7(2022).