Detection of cardiac magnetic field with fiber-optic magnetic gradiometer

1993 ◽  
Vol 5 (1) ◽  
pp. 112-113 ◽  
Author(s):  
R.D. Rempt ◽  
C. Ramon
Keyword(s):  
Magnetic Field ◽  
Fiber Optic

High-sensitivity fiber optic magnetic field sensor based on lossy mode resonance and hollow core-offset structure

2021 ◽  
pp. 1-12
Author(s):  
Xue-Peng Jin ◽  
Hong-Zhi Sun ◽  
Shuo-Wei Jin ◽  
Wan-Ming Zhao ◽  
Jing-Ren Tang ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Fiber Optic ◽  
High Sensitivity ◽  
Magnetic Field Sensor ◽  
Hollow Core ◽  
Field Sensor

Triaxial Fiber Optic Magnetic Field Sensor for Magnetic Resonance Imaging

2017 ◽  
Vol 35 (18) ◽  
pp. 3924-3933 ◽  
Author(s):  
Massimo L. Filograno ◽  
Marco Pisco ◽  
Angelo Catalano ◽  
Ernesto Forte ◽  
Marco Aiello ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Field ◽  
Magnetic Resonance ◽  
Fiber Optic ◽  
Magnetic Field Sensor ◽  
Resonance Imaging ◽  
Field Sensor

scholarly journals Cascaded fiber-optic Fabry-Perot interferometers with Vernier effect for highly sensitive measurement of axial strain and magnetic field

2014 ◽  
Vol 22 (16) ◽  
pp. 19581 ◽  
Author(s):  
Peng Zhang ◽  
Ming Tang ◽  
Feng Gao ◽  
Benpeng Zhu ◽  
Songnian Fu ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Fiber Optic ◽  
Axial Strain ◽  
Highly Sensitive ◽  
Fabry Perot ◽  
Vernier Effect

scholarly journals Fiber optic magnetic field sensor using Co doped ZnO nanorods as cladding

RSC Advances ◽  
2018 ◽  
Vol 8 (33) ◽  
pp. 18243-18251 ◽  
Author(s):  
S. Narasimman ◽  
L. Balakrishnan ◽  
Z. C. Alex
Keyword(s):  
Magnetic Field ◽  
Fiber Optic ◽  
Zno Nanorods ◽  
Magnetic Field Sensor ◽  
Maximum Sensitivity ◽  
Field Range ◽  
Magnetic Field Range ◽  
Field Sensor ◽  
Doped Zno ◽  
Co Doped

A fiber optic magnetic field sensor based on Co doped ZnO nanorods is proposed and demonstrated. The sensor has an operating magnetic field range of 17 mT to 180 mT and shows a maximum sensitivity of ∼18% for 15 at% Co doped ZnO nanorods.

Magnetic Field and Current Sensing by Reflection on Fiber-Optic End Face in Ferrofluids

2009 ◽  
Vol 29 (6) ◽  
pp. 1482-1486
Author(s):  
陆樟献 Lu Zhangxian ◽  
陈善飞 Chen Shanfei ◽  
王正良 Wang Zhengliang
Keyword(s):  
Magnetic Field ◽  
Fiber Optic ◽  
Current Sensing

Study on the Axial Magnetic Field Sensitivity in Optical Fiber Coil of Fiber Optic Gyroscope

2015 ◽  
Vol 42 (8) ◽  
pp. 0805005
Author(s):  
王夏霄 Wang Xiaxiao ◽  
冯志芳 Feng Zhifang ◽  
秦祎 Qin Yi ◽  
于佳 Yu Jia ◽  
吕江涛 Lü Jiangtao
Keyword(s):  
Magnetic Field ◽  
Optical Fiber ◽  
Fiber Optic ◽  
Axial Magnetic Field ◽  
Fiber Optic Gyroscope ◽  
Field Sensitivity ◽  
Fiber Coil

scholarly journals Miniature Fiber-Optic Magnetic Field Sensor Based on Ampere Force and Fiber Laser

2020 ◽  
Vol 10 (4) ◽  
pp. 291-297
Author(s):  
Weiren Cheng ◽  
Tianming Luo ◽  
Linghao Cheng ◽  
Hao Liang ◽  
Bai-ou Guan
Keyword(s):  
Magnetic Field ◽  
Fiber Laser ◽  
Fiber Optic ◽  
Copper Wire ◽  
Beat Signal ◽  
Magnetic Field Sensor ◽  
Frequency Change ◽  
Dual Frequency ◽  
Ampere Force ◽  
Field Sensor

Abstract A compact fiber-optic magnetic field sensor is proposed by packaging an orthogonal dual-frequency fiber grating laser and a copper wire with alternating electrical current together inside epoxy resin. The alternating current generates Ampere force in a magnetic field, which changes the birefringence of the fiber laser and hence tunes the frequency of the beat signal after photodetection. The magnetic field magnitude can then be detected by measuring the frequency change of the beat signal. The sensitivity of the sensor can be tuned with a maximum response of 35.21 kHz/kGs demonstrated. Moreover, the sensor shows good immunity to environment interference.

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