| 基于多尺度瞬时相位分析的玻璃纤维蒙皮缺陷检测研究 |
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| 引用本文： | 褚丽娜,李建增,周海林.基于多尺度瞬时相位分析的玻璃纤维蒙皮缺陷检测研究[J].玻璃钢/复合材料,2012(4):9-12. |
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| 作者姓名： | 褚丽娜 李建增 周海林 |
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| 作者单位： | 军械工程学院,石家庄,050003 |
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| 摘 要： | 随着超声回波信号广泛应用于无损检测领域,如何有效提取超声回波信号中的特征进行试件内部缺陷识别就成为一个重要的问题。本文使用小波包分解提取超声回波信号中带有特征信息的信号,提取信号的瞬时相位作为特征参量,可以准确判断出缺陷是否和相对大小。
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| 关 键 词： | 超声 多尺度分析 瞬时相位 玻璃纤维 |
STUDY ON THE DEFECTS OF GLASS FIBER COATING BASED ON THE MULTI-SCALE AND INSTANTANEOUS PHASE |
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| CHU Li-na
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LI Jian-zeng
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ZHOU Hai-lin.STUDY ON THE DEFECTS OF GLASS FIBER COATING BASED ON THE MULTI-SCALE AND INSTANTANEOUS PHASE[J].Fiber Reinforced Plastics/Composites,2012(4):9-12. |
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| Authors: | CHU Li-na LI Jian-zeng ZHOU Hai-lin |
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| Affiliation: | (Ordnance Engineering College,Shijiazhuang 050003,China) |
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| Abstract: | With the ultrasonic echo signal is widely used in nondestructive testing,how to effectively extract the characteristics of ultrasonic echo signal to recognize the defect in the test piece is an important issue.The signal carrying the characteristic information is extracted by using wavelet packet,then the instantaneous phase as characteristic parameter is used to accurately judge presence and relative size of a defect |
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| Keywords: | ultrasonic multi-scale analysis instantaneous phase glass fiber |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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