计量学报2012，Vol.33Issue(5)：400-404,5.DOI:10.3969/j.issn.1000-1158.2012.05.04
变厚度曲面复合工件超声波形自动跟踪研究
Research on Automatic Ultrasonic Waveform Tracking for Curved Surface Composite Parts with Variable Thickness
摘要
Abstract
The principles of ultrasonic test and automatic wave tracking were analyzed and the improved BP neural network was proposed to acquire the mapping function between the plus of sensitivity and sampling points position information,which was made into template,in order to realize compensation and real-time control of the plus of sensitivity and automatic tracking of the bottom wave during the ultrasonic test for the curved surface composite parts with variable thickness. The simulated results and experiments have shown that the proposed method overcome the difficulty of multi-peeks successfully in automatic ultrasonic test for curved surface composite parts with variable thickness. It is in common significance to improve the efficiency and accuracy of ultrasonic test for similar complex curved surface parts with high attenuation rate.关键词
计量学/超声检测/波形跟踪/变厚度曲面/改进型BP神经网络Key words
Metrology/ Ultrasonic test/ Wave tracking/ Variable thickness curved surface/ Improved BP neural network分类
通用工业技术引用本文复制引用
郑慧峰,吕江明,杨妮,杨辰龙..变厚度曲面复合工件超声波形自动跟踪研究[J].计量学报,2012,33(5):400-404,5.基金项目
国家自然科学基金项目(51075358) （51075358）
浙江省自然科学基金项目(LQ12E05018) （LQ12E05018）
