传感技术学报2018，Vol.31Issue(1)：6-12,7.DOI:10.3969/j.issn.1004-1699.2018.01.002
基于平面阵列电磁传感器的金属缺陷检测新方法
A New Method for Detecting Metal Defects Based on Planar Array Electromagnetic Sensor
摘要
Abstract
In order to improve the measurement accuracy for position,shape and size of defects in metal,a new pla-nar array electromagnetic sensor is designed. This sensor not only overcomes the insensitivity in the centre of sensing field,but also improves the versatility. As a result, the detection prediction of the electromagnetic sensor is improved. In this paper,the traditional scanning detection method and the new Electromagnetic tomography( EMT) detection method based on the new plane array electromagnetic sensor are used for metal defect detection. The sparse weighted algorithm is used to reconstruct the defect image in EMT detection method. Both simulation and ex-periments were conducted. The results show that the EMT method based on planar array sensor is suitable for recon-struction of metal defect image. The position,shape and size of the metal defect can be accurately detected.关键词
电磁传感器/电磁层析成像/金属缺陷检测/图像重建Key words
electromagnetic sensor/electromagnetic tomography/metal defect detection/image reconstruction分类
信息技术与安全科学引用本文复制引用
汪剑鸣,杨伟明,王琦,崔莉莎,孙玉宽,王化祥,窦汝振..基于平面阵列电磁传感器的金属缺陷检测新方法[J].传感技术学报,2018,31(1):6-12,7.基金项目
项目来源:国家科技支撑计划重点项目(2013BAF06B00) （2013BAF06B00）
国家自然科学基金项目(61373104,61402330,61405143,61601324) （61373104,61402330,61405143,61601324）
高等学校博士点专项科研基金项目( 20131201120002) （ 20131201120002）
天津市应用基础与前沿技术研究计划项目( 15JCQNJC01500) （ 15JCQNJC01500）
