计算机技术与发展2012，Vol.22Issue(7)：211-214,218,5.
基于LabWindows/CVI超声缺陷信号频谱分析的设计
Design of Analysis of Ultrasonic Flaw Signal Spectrum Based on LabWindows/CVI
摘要
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.关键词
超声检测/虚拟仪器/LabWindows\CVI/频谱分析/缺陷信号Key words
ultrasonic testing/virtual instruments/LabWindows\CVI/spectrum analyzing/ ultrasonic flaw signal分类
信息技术与安全科学引用本文复制引用
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,2012,22(7):211-214,218,5.基金项目
国家自然科学基金(61105082) （61105082）
