[1]郭前岗 薛杏 周西峰.基于LabWindows／CVI超声缺陷信号频谱分析的设计[J].计算机技术与发展,2012,(07):211-214.
　GUO Qian-gang,XUE Xing,ZHOU Xi-feng.Design of Analysis of Ultrasonic Flaw Signal Spectrum Based on LabWindows/CVI[J].,2012,(07):211-214.
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基于LabWindows／CVI超声缺陷信号频谱分析的设计()

《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2012年07期
页码:
211-214
栏目:
应用开发研究
出版日期:
1900-01-01

文章信息/Info

Title:
Design of Analysis of Ultrasonic Flaw Signal Spectrum Based on LabWindows/CVI
文章编号:
1673-629X（2012）07-0211-04
作者:
郭前岗 薛杏 周西峰
南京邮电大学自动化学院
Author(s):
GUO Qian-gang;  XUE Xing ; ZHOU Xi-feng
College of Automation, Nanjing University of Posts and Telecommunications
关键词:
超声检测; 虚拟仪器; LabWindows＼CVI; 频潜分析; 缺陷信号
Keywords:
ultrasonic testing; virtual instruments; LabWindows／CVI; spectrum analyzing;  ultrasonic flaw signal
分类号:
TP39
文献标志码:
A
摘要:
为了避免超声时域检测法本身的局限性，超声频谱分析技术在无损检测领域中得到了广泛重视。由于被检测工件的缺陷回波会受到缺陷的形状、大小、性质等因素影响，即频谱特性中隐含了缺陷特性，既而可以通过频谱分析，作为缺陷性质的辅助判定。文中在超声信号频谱分析原理和实施方法的基础上，研究LabWindows＼CVI在超声缺陷信号频谱分析中的应用，并分析超声缺陷信号的频谱图，实现缺陷的定性和分类。本设计体现了虚拟仪器技术应用在超声检测领域中的优势，提高了对缺陷评价的客观性和可靠性
Abstract:
In order to avoid the limitations inherent in ultrasonic time-domain detection, the ultrasonic spectrum analysis in the field of nondestructive testing has been extensive attention. Because the defective echo in the detected workpiece is influenced by the shape, size, nature and other factors of defects, which is echo spectral features hidden defect characteristics, by spectral analysis can be used to determine the defective nature of the auxiliary. In this paper,based on ultrasonic signal spectrum analysis principles and implementation methods,research LabWindows／CVI in the application of ultrasonic spectrum analysis, and analyse ultrasonic flaw signal spectrum to achieve defect characterization and classification. The design reflects the advantages of application of virtual instrumentation in the field of ultrasonic testing, improve the evaluation of the objectivity and reliability of defect

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备注/Memo

备注/Memo:
国家自然科学基金（61105082）郭前岗（1960-），男，教授，研究方向为智能控制理论与技术及其在电气系统中的应用以及大型分布式复杂工业电气系统的网络控制理论与技术；薛杏（1988-），女，硕士研究生，研究方向为超声波信号研究与处理
更新日期/Last Update: 1900-01-01