基于法拉第效应的三维光纤磁场传感器的设计

Design of Three-dimensional Magnetic-field Sensor Based on the Faraday Effect

传统的基于法拉第效应的光纤磁场传感器以抗干扰强、灵敏度高、体积小的固有优点已得到广泛应用,但由于法拉第效应对磁场的方向具有选择造成系统测量误差;提出基于法拉第效应的三维光纤磁场传感器的系统,系统可真实地测出空间磁场强度,大大减小测量误差,并对系统进行优化。

Conventional magnetic-field sensor based on the Faraday effect has been used widely because of the anti-jamming, sensitive and small trait. However, the Faraday effect chooses the direction of magnetic-field, so that the measured value is different from the true value.It designs the three-dimensional magnetic-field sensor based on the Faraday effect to avoid that fault. This sensor can measure true value of magnetic-field and get direction of magnetic-field. At last, we improve on this system.