Consecutive Polarity Coincidence Based Split-spectrum Processing in Ultrasonic Testing of Coarse Materials

摘要：

A novel split-spectrum processing (SSP) method for ultrasonic echo signal was proposed, which employs consecutive polarity coincidence (CPC) as the recovering algorithm and can be used in ultrasonic nondestructive testing to coarse materials. Both numerical simulation and experimental result manifested that, by using this method, the ratio of signal to noise (SNR) can be improved and the flaw echo can be effectively extracted with better performance than other conventional SSP methods.

关键词： Split-spectrum processing ultrasonic nondestructive testing consecutive polarity coincidence

作者: Yuan Kang Pan Zhongqiao Ma Shiwei

作者单位: School of Mechatronic Engineering & Automation,Shanghai University,Shanghai Key Laboratory of Power Station Automation Technology,Shanghai 200072,China

会议类型: 国际会议

会议名称: 第八届国际电子测量与仪器学术会议(Proceedings of 2007 8th International Conference on Electronic Measurement & Instruments)

会议地点: 西安

会议语种:英文

在线出版日期: 2007-08-16（万方平台首次上网日期，不代表论文的发表时间）