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Author:

赵明书 (赵明书.) | 陈振华 (陈振华.) | 史耀武 (史耀武.)

Indexed by:

CQVIP

Abstract:

以AZ91铸造镁合金试块上的人工孔形缺陷为检测对象,研究缺陷的直径及埋藏深度与超声A扫描信号特征量的关系.结果表明,缺陷信号幅值与孔形缺陷直径及其埋藏深度有良好的线性关系.采用低通滤波和小波分析的方法对从镁合金试块上采集到的弱信号进行降噪处理,结果表明,小波变换能有效提高小孔径缺陷信号的信噪比.

Keyword:

镁合金 小波分析 超声波检测

Author Community:

  • [ 1 ] [赵明书]北京工业大学
  • [ 2 ] [陈振华]北京工业大学
  • [ 3 ] [史耀武]北京工业大学

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Source :

无损检测

ISSN: 1000-6656

Year: 2008

Issue: 2

Volume: 30

Page: 73-76,80

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: 10

Chinese Cited Count:

30 Days PV: 7

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