论文部分内容阅读
为解决反射式全光纤电流传感器中引入全反射镜而产生的反射损耗及与光纤匹配困难等问题,设计了一种利用非线性光环路镜作为反射元件的全光纤电流传感器,推导出了光偏振态的斯托克斯矢量与电流的关系式,提出了高速偏振态检测方法。在加载0~200A的50Hz工频交流电的条件下进行了实验,测试结果与理论预测吻合,显示出了较高的测量精确性,证明了该传感结构与实验方案的可行性。
In order to solve the problems such as the reflection loss caused by the introduction of total reflection mirror in reflection type all-fiber current sensor and the difficulty in matching with the optical fiber, a full fiber current sensor using a nonlinear ring mirror as a reflection element is designed. State Stokes vector and the current relationship, the proposed high-speed polarization detection method. Experiments were carried out under the condition of 50Hz AC power of 0 ~ 200A. The test results were in good agreement with the theoretical predictions, showing a high accuracy of measurement. The feasibility of the sensing structure and the experimental scheme was proved.