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| 分布式光纤传感技术应变测量试验研究 | |
| 引用本文： | 何宁,王平,丁勇,钱亚俊,彭智. 分布式光纤传感技术应变测量试验研究[J]. 中国测试技术, 2011, 37(2) |
| 作者姓名： | 何宁 王平 丁勇 钱亚俊 彭智 |
| 作者单位： | 1. 南京水利科学研究院,江苏,南京,210029 2. 中国第一冶金建设有限责任公司,湖北,武汉,430081 3. 南京水利科学研究院,江苏,南京,210029;南京理工大学,江苏,南京,210094 4. 南京理工大学,江苏,南京,210094 |
| 摘 要： | 基于布里渊散射原理的布里渊光时域反射技术利用布里渊散射光的光谱技术和光时域测量技术,可对光纤沿线的温度、应变进行分布式监测。通过试验研究了分布式光纤传感技术在应变测量中的空间分辨率、应变分辨率、应变测量精度。研究结果表明,分布式光纤传感技术应变测量能够较准确地测得被测量结构上任何一点的应变,空间最小分辨率0.1m,应变测量分辨率和精度满足工程监测要求,可以在工程监测中作为一种新型分布式应变监测技术加以推广。 |
| 关 键 词： | 布里渊 分布式光纤 应变 分辨率 精度 |
Experimental study of distributed fiber optic sensing techniques for the measurement of strain |
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| HE Ning,WANG Ping,DING Yong,QIAN Ya-jun,PENG Zhi. Experimental study of distributed fiber optic sensing techniques for the measurement of strain[J]. China Measurement Technology, 2011, 37(2) | |
| Authors: | HE Ning WANG Ping DING Yong QIAN Ya-jun PENG Zhi |
| Affiliation: | HE Ning1,WANG Ping2,DING Yong1,3,QIAN Ya-jun1,PENG Zhi3(1.Nanjing Hydraulic Research Institute,Nanjing 210029,China,2.China First Metallurgical Construction Co.,Ltd.,Wuhan 430081,3.Nanjing University of Science and Technology,Nanjing 210094,China) |
| Abstract: | This work presents the application of Brilliouin optical time domain reflection technique to monitor the distribution of temperature and strain along the fiber.The spatial resolution,and the resolution and precision of strain of distributed fiber optic sensing technique in strain measurement were tested.Using this technique,the experiments results showed that the strain of every point on the structure could be measured accurately with a minimum spatial resolution of 0.1 m.In addition,the resolution and prec... |
| Keywords: | brillouin distributed fiber optic strain resolution precision |
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