新型光纤传感器在管道渗漏监测中的应用研究

Application of New Optical Fiber Sensor in Pipeline Leakage Monitoring

中文关键词:  管道渗漏  光纤光栅传感器  定位监测  温度差

英文关键词:pipeline leakage  fiber bragg grating sensor  location monitoring  temperature difference

中文摘要:

      通过研究一种应用于管道渗漏监测中的新型传感器，为实时监测管道状态提供新的研究思路。采用碳纤维包裹光纤光栅传感器的结构，碳纤维在电场激励下发热，利用设置在管壁上的导流槽，及时地将渗漏处的水流引至测温点周围区域，光纤传感器捕捉到环境温度变化，分析得到渗漏速度和位置。利用有限元软件对实验进行模拟仿真计算，验证了此方法用于渗漏监测的可行性。通过渗漏实验和结果分析，与仿真的结果进行比较，验证了此方法用于渗漏监测的有效性以及实验数据的合理性。

英文摘要:

      By studying a new sensor applied to pipeline leakage monitoring,a new research idea is provided for real-time monitoring of pipeline state.The structure of carbon fiber wrapped fiber Bragg grating sensor is adopted.The carbon fiber generates heat under the excitation of electric field.The water flow at the leakage is led to the area around the temperature measuring point in time by using the diversion groove set on the pipe wall.The optical fiber sensor captures the change of ambient temperature and analyzes the leakage speed and position.The experiments are simulated by using finite element software to verify the feasibility of this method for leakage monitoring.Through leakage test and result analysis,the validity of this method for leakage monitoring and the rationality of experimental data are verified by comparison with the simulation results.