Application of Fuzzy Pattern Recognition in Felting Quality Ultrasonic Detection of Composite Material

摘要：

Base on the signal of composite material felting quality in ultrasonic detection,the detection principle of ultrasonic pulse reflection echo method and the transmitting process of ultrasonic in two types of medium that is made by different material are analyzed in detail. Echo signal of detection ultrasonic carries the information of interface felting quality. The fuzzy pattern recognition method is used for felting quality recognition in this paper. By analyzing the characteristic of time and frequency domain of echo signal,attenuation coefficient,signal energy and amplitudes are calculated as characteristic values,and a fuzzy pattern recognition algorithm is designed to judge felting quality by the principle of choosing the nearest. Experimental results show that the algorithm is precise for recognition of felting quality.

关键词： fuzzy pattern recognition ultrasonic detection felting defect.

作者: Pengfei Zhang Runjing Zhou

作者单位: College of Electronic Information Engineering,Inner Mongolia University 010021 Hohhot,China College of Electronic Information Engineering,Inner Mongolia University 010021 Hohhot,China.

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 2976-2979

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）