【作者】 姜中英； 张春熹； 冯丽爽； 王夏霄；

【机构】 北京航空航天大学仪器科学与光电工程学院；

【摘要】 λ／4波片和传感光纤是影响光纤电流互感器测量精度的两个关键器件。利用琼斯矩阵推导出系统检测的信号强度与波片的相位延迟角度和传感光纤中残余线性双折射的关系,并实验验证了通过改善波片结构和抑制传感光纤中残余线性双折射的方法可以显著提高光纤电流互感器的测量精度。更多还原

【Abstract】 Quarter-waveplate and sensing fiber are the two key parts that influence the precision of the fiber optical current transducer. By using Jones Matrix, the relationship of the signal detected by the system and the retarders of quarter-waveplate and the birefringence in the sensing fiber can be gotten. Furthermore the precision of the fiber optical current transducer can be improved through experiments by perfecting the configuration of quarter-waveplate and restraining the birefringence in the sensing fiber.更多还原