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A novel BOTDA technique based on continuous lightwave pump
Author(s): 
Pages: 70-74
Year: Issue:  3
Journal: OPTICAL INSTRUMENTS

Keyword:  分布式光纤传感器布里渊散射光时域分析仪空间分辨力;
Abstract: 介绍了一种基于连续的抽运-探测光相关的布里渊分布式光纤传感器新技术,该技术采用频率调制连续的抽运光和探测光,通过检测沿光纤的后向布里渊散射光的频移实现温度和应变的分布式测量,其空间分辨力可达1cm,比常规基于脉冲抽运光的布里渊光时域分析仪(BOTDA)技术的分辨力高近两个数量级.还结合常规BOTDA讨论了该新技术高分辨力的优势和测量范围受限制的不足.
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