Research on Axial Magnetic Field Sensitivity in the Polarization-Maintaining Optical Fiber Coil of Fiber Optic Gyroscope
| Autor: | Wanqing Chen, Xiao Peng, Ningfang Song, Xiaxiao Wang, Fu Ma, Jia Yu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Optical fiber
Materials science General Computer Science business.industry fiber optic gyroscope axial magnetic field sensitivity General Engineering Physics::Optics Polarization-maintaining optical fiber Gyroscope Radius Fibre optic gyroscope Fiber optics law.invention Magnetic field Optics law Electromagnetic coil General Materials Science Sensitivity (control systems) polarization-maintaining optical fiber coil lcsh:Electrical engineering. Electronics. Nuclear engineering business lcsh:TK1-9971 |
| Zdroj: | IEEE Access, Vol 8, Pp 222242-222247 (2020) |
| ISSN: | 2169-3536 |
| Popis: | The magnetic field sensitivity is the main source of errors in a fiber optic gyroscope (FOG) and the polarization-maintaining (PM) optical fiber coil is a major sensitive source. In this paper, a theory that an orthogonal magnetic field vertical to the light propagating direction in a PM optical fiber coil can induce a non-Faraday nonreciprocal phase difference in a FOG is presented. The theoretical simulation and experimental results show that the orthogonal magnetic drift proportional to the orthogonal magnetic field is the main cause of the axial magnetic field sensitivity in a FOG, which is closely related to the skeleton radius of the optical fiber coil and depends neither on the fiber coil’s size nor the shape. Furthermore, the orthogonal magnetic field sensitivity will increase with decreasing skeleton radius. Aiming at the application demand of miniaturized gyroscope, the research results of this paper have certain guiding significance and engineering application value. |
| Databáze: | OpenAIRE |
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