基于聚磁技术的新型脉冲涡流传感器设计  

Design on a novel pulsed eddy current sensor based on magnetic-concentration technique

作　　者：赵玉丰[1] 朱荣新[1] 杨宾峰[1] 方姚生[1] 

机构地区：[1]空军工程大学电讯工程学院,陕西西安710077

出　　处：《传感器与微系统》2011年第7期100-103,110,共5页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(50807053)

摘　　要：对裂纹缺陷长度和深度进行定量是脉冲涡流无损检测的一项重要内容。提出了一种基于聚磁技术的新型脉冲涡流传感器。采用大型电磁仿真软件ANSYS建立了传统脉冲涡流传感器和新型脉冲涡流传感器的仿真模型,然后对比分析了两者对裂纹缺陷长度定量的结果,仿真分析表明:新型传感器可以实现对裂纹长度的准确定量,同时还能够对裂纹深度进行定量。采用实验的方法对仿真结果进行了验证,实验结果与仿真结论相一致,证明了新型传感器的有效性。Quantification for length and depth of crack is important content in the pulsed eddy current（PEC） non-destructive examination（NDE）.A novel PEC probe based on magnetic-concentrating technique is proposed.Simulation models of typical PEC probe and novel PEC probe are established by ANSYS software,and the length-quantification results from the two probes are compared and analyzed.The simulation results reveal that novel PEC probe could realize accurate quantification on the crack length and depth parameter.The simulations＇ correctness is experimentally testified by experiment results,and it shows that the novel PEC probe is valid.

关 键 词：脉冲涡流 新型传感器 聚磁检测 裂纹缺陷 定量检测 

分 类 号：TG115.28[金属学及工艺—物理冶金]