压电阻抗法检测管道腐蚀损伤的实验研究  

THE EXPERIMENTAL RESEARCH OF PIEZOELECTRIC IMPEDANCE METHOD TO DETECT THE PIPELINE' S CORROSION DAMAGE

作　　者：宋焕宇 王广辉[2] 

机构地区：[1]平顶山市公路管理局,河南平顶山467000 [2]南阳理工学院,河南南阳473004

出　　处：《南阳理工学院学报》2012年第6期82-85,94,共5页Journal of Nanyang Institute of Technology

基　　金：高等学校博士学科点专项科研基金(20100142120074)

摘　　要：对油气管道的损伤进行实时监测,是建立管道健康监测系统的基本前提。本文基于压电阻抗技术进行油气管道腐蚀损伤识别实验,实测不同损伤类型的管道损伤前后及不同损伤状态下的PZT阻抗谱,探讨了管道损伤与PZT阻抗信息变化的关系。同时对实验数据进行分析,获取了与损伤类型相对应的统计特征指标变化规律,能够判断管道损伤位置和程度。Real-time monitoring for the damage of oil and gas pipelines is the basic premise to establish pipeline health monitoring system. Based on the piezoelectric impedance technology for oil and gas pipeline corrosion damage recognition experiment,which measure different types of injuries before and after the pipeline damage and different damage state of the pipeline,pipeline damage and PZT impedance information changes are discussed in the law. At the same time,analyse the experimental data,obtained the statistical characteristics of index variation corresponding to the type of injury,determined the location and extent of pipeline damage.

关 键 词：管道 压电阻抗 损伤检测 压电陶瓷 

分 类 号：O4-33[理学—物理]