WANG Dong-sheng, GE Hai-bo, DU Qin. Study on stability of magnetic-field measurement of fiber grating sensor[J]. 2014, 33(3): 62-65. DOI: 10.13873/j.1000-97872014.03.036.
In order to reduce effect of linear birefringence and the incident polarizing angle on stability of system of fiber grating magnetic-field sensor and improve accuracy of measuring system
a design scheme for reducing the effect of linear birefringence and incident polarizing angle on output of system is proposed.Fiber grating magnetic- field sensor system based on Faraday effect is studied
and relation between output voltage and magnetic field is derived
improve output characteristics of system by reducing linear birefringence and confirming incident polarizing angle.Simulation results show that the method can suppress the nonlinear relationship caused by the linear birefringence thereby improve the stability of magnetic-field measurement.