【摘要】 针对扭转光纤电流传感器由于环境因素（如温度、压力、振动）变化使光纤中传输光偏振态改变，从而导致传感器输出信号漂移问题，提出了一种新的信号处理方法进行克服。这一方法适用于交变电流的检测。实验中通过旋转输入线偏振光偏振方向的方法检验了所提方法的有效性，证明这种补偿方法对传感器偏置相位的任意偏移均适用。更多还原

【Abstract】 The output of electric current sensor employing twisted fibre may suffer from variation of ambient temperature or other perturbations such as pressure and vibration. A new compensation method for such perturbations is proposed and demonstrated in this paper for ac current detection. In the experiment, the shift of the initial bias phase of the current sensor is simulated by changing the azimuthal angle of the linearly polarized light at the fibre input, and the validity of the compensation method is verified experimentally. This method is able to compensate arbitrary shift in sensor bias phase.更多还原