基于LabVIEW的激光超声管道检测系统

发布时间：2018-09-10 08:22

【摘要】：油气管道在日常生活和经济建设中发挥着重要作用,同时也存在着安全隐患,各种油气管道爆炸事件时有发生,给人们的生活和财产带来威胁。为保证油气管道的安全有效运行,应定期对其进行检测。激光超声检测技术相对于传统超声检测技术具有更高的空间分辨率,这一优点使其具有检测油气管道微小缺陷的潜力。该文根据激光超声检测原理,设计基于LabVIEW的激光超声燃气管道检测系统,重点介绍系统中数据采集、运动控制和数据分析模块,解决从激光超声信号的激励到数据采集、信号分析处理和缺陷识别等技术问题,实现油气管道各类缺陷的快速检测的目的。通过对带有周向裂纹管道做检测实验,结果表明:该系统具有良好的检测性能,对解决激光超声测量与诊断问题具有实际意义。
[Abstract]:Oil and gas pipelines play an important role in daily life and economic construction, but there are also hidden dangers of safety. Various oil and gas pipeline explosion incidents occur from time to time, which threaten people's life and property. In order to ensure the safe and effective operation of oil and gas pipelines, it is necessary to check them regularly. Laser ultrasonic detection technology has higher spatial resolution than traditional ultrasonic detection technology, which makes it has the potential to detect small defects in oil and gas pipelines. According to the principle of laser ultrasonic detection, a laser ultrasonic gas pipeline detection system based on LabVIEW is designed in this paper. The modules of data acquisition, motion control and data analysis in the system are introduced, which can solve the problem from the excitation of laser ultrasonic signal to the data acquisition. The purpose of rapid detection of various defects in oil and gas pipelines is realized through signal analysis and defect identification. The experimental results of the pipeline with circumferential cracks show that the system has good detection performance and has practical significance to solve the problem of laser ultrasonic measurement and diagnosis.
【作者单位】：北京石油化工学院机械工程学院;北京化工大学机电工程学院;
【分类号】：TE973.6

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