全光纤微电流传感器研究进展

Research Progress of All-Fiber Optic Micro-Current Sensor

采用全光纤电流传感器实现微弱电流检测,可以拓展光纤传感技术在微弱磁场检测领域的应用。在分析全光纤微电流传感器的基本原理和主要光路结构的基础上,从增加光路循环次数、提高传感光纤性能、降低系统噪声三个方面,综述了全光纤微电流传感的最新研究成果及存在问题,并展望了全光纤微电流传感器未来发展趋势。

Allfiber optic current sensor is applied for microcurrent detection,which can expand the application of optical fiber sensing technology in weak magnetic field detection.On the basis of analyzing the basic principle and main optical path structure of the allfiber microcurrent sensor,the latest research results of the allfiber microcurrent sensor are reviewed from three aspects:increasing the number of optical circuit cycles,improving the performance of the sensing fiber,and reducing the system noise.And the future development trend of allfiber microcurrent sensor is prospected.