Enlargement of measurement range in Brillouin optical correlation domain analysis with high-speed random accessibility using temporal gating scheme for multiple-points dynamic strain measurement
Enlargement of measurement range in Brillouin optical correlation domain analysis with high-speed random accessibility using temporal gating scheme for multiple-points dynamic strain measurement
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DOI：
10.1117/12.2194686
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发表时间：
2015-09
期刊：
影响因子：
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通讯作者：
Chunyu Zhang;M. Kishi;K. Hotate
中科院分区：
文献类型：
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作者：
Chunyu Zhang;M. Kishi;K. Hotate
我们提出并实验证明了一个布里渊光学相关域分析系统，既具有高速随机访问和时间选通方案，以扩大测量范围。演示了在任意沿着延长的测量范围选择的多个点处的高速动态应变测量。我们成功地测量了光纤上沿着选定的两个点的动态应变，测量范围为200 m，空间分辨率为8 cm，测量速度为1，000点/秒，可随机访问。
We propose and experimentally demonstrate a Brillouin optical correlation domain analysis system both with high-speed random accessibility and with temporal gating scheme to extend the measurement range. High-speed dynamic strain measurement at multiple points selected arbitrarily along an elongated measurement range is demonstrated. We successfully measured the dynamic strain at the selected two points along a fiber, with 200 m measurement range, 8 cm spatial resolution, and 1,000 points/s measurement speed of random accessibility.