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。
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.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1999年第7期981-987,共7页
Acta Optica Sinica
