摘要
对基于光时域反射仪(OTDR)的螺旋型分布式光纤传感器的工作机理进行了分析,通过试验获得了光纤宏弯曲损耗-位移的拟合曲线,以及该曲线与工作波长、棒体直径的关系。研究结果表明:该螺旋型分布式光纤传感器具有监测量程大、定位精度高的特点,通过优化工作波长和棒体尺寸,可以进一步提高传感器的量程和性能。
The operating mechanism of OTDR-based spiral distributed fiber-optic sensor is analyzed and the fitting curve of macrobend optical loss versus shift and its relationship with the operating wavelength and spiral bar diameter obtained by experiments.The research results show that the sensor is characteristic of large monitoring range and highly accurate location and its monitoring range and performances can be further improved by optimizing its working wavelength and spiral bar size.
出处
《光通信研究》
北大核心
2011年第1期59-61,共3页
Study on Optical Communications
基金
国电大渡河流域水电开发有限公司资助项目(SXG-QT-2007-018)
