摘要
基于激光超声技术研究了一种表面波的峰值重建算法,搭建二维激光激励扫描式激光超声检测盆式绝缘子的实验平台,对人工制作的气泡、杂质、裂纹缺陷进行检测研究,并对实际现场应用中带有裂纹故障的盆式绝缘子进行离线检测。结果表明:基于激光超声峰值重建算法重建的峰值图像能够较好地反映扫描区间盆式绝缘子的缺陷信息,证实了该方法可以实现对盆式绝缘子表面裂纹缺陷的离线检测。
On the basis of laser ultrasonic technology, a peak reconstruction algorithm of surface wave was studied, and an experimental platform of two-dimensional laser excitation scanning laser ultrasonic detection for basin insulators was built.Then the artificial bubble, impurity, and crack defects were detected and studied, and the basin insulator with crack fault in practical field application was carried out off-line detection. The results show that the reconstructed peak image based on laser ultrasonic peak reconstruction algorithm can better reflect the defect information of basin insulator in scanning interval,which proves that this method can realize the off-line detection of surface crack defect on the basin insulator.
作者
王伟
刘宏
董理科
徐玉东
吴海飞
夏慧
沈中华
WANG Wei;LIU Hong;DONG Like;XU Yudong;WU Haifei;XIA Hui;SHEN Zhonghua(State Grid Shanxi Electric Power Research Institute,Taiyuan 030001,China;School of Electronic,Electrical and Communication Engineering,University of Chinese Academy of Sciences,Beijing 100190,China;Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,China;School of Science,Nanjing University of Science and Technology,Nanjing 210094,China)
出处
《绝缘材料》
CAS
北大核心
2023年第1期96-101,共6页
Insulating Materials
基金
国家电网有限公司总部管理科技项目(520530190008)。
关键词
盆式绝缘子
激光超声
峰值重建算法
无损检测
basin insulator
laser ultrasonic
peak reconstruction algorithm
nondestructive testing
