Lingyan Jia, Lili Liang, Fei Xie, Zhida Wang, Chen Wang, Ao Wang, Guoyu Li, Yan Li, Mingsheng Liu. Interferometric Optical Microfiber Magnetic Field Sensor Based on Magnetostrictive Rod[J]. Laser & Optoelectronics Progress, 2023, 60(7): 0728003
- Laser & Optoelectronics Progress
- Vol. 60, Issue 7, 0728003 (2023)
Fig. 1. Optical fiber magnetic field sensor. (a) Experimental setup; (b) physical map
Fig. 2. Microfiber interferometer. (a) Experimental setup; (b) micrograph; (c) SEM image of sensitive area
Fig. 3. Experimental results. (a) Variation of interference spectrum with tensile length; (b) strain characteristics of microfiber interferometer; (c) stability of microfiber magnetic field sensor
Fig. 4. Experimental results. Variation of interference spectrum with magnetic field of (a) 3 mm TbDyFe rod and (b) 2 mm TbDyFe rod; variation of wavelength of dip1 with magnetic field of (c) 3 mm TbDyFe rod and (d) 2 mm TbDyFe rod
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Table 1. Magnetic field optical fiber sensor based on magnetostrictive material
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