• 中国科技论文统计源期刊
  • 中文核心期刊
  • 中国科技核心期刊
  • 中国机械工程学会无损检测分会会刊
高级检索

钢管虚拟超声检测信号处理技术

杨博, 范弘

杨博, 范弘. 钢管虚拟超声检测信号处理技术[J]. 无损检测, 2014, 36(12): 56-59.
引用本文: 杨博, 范弘. 钢管虚拟超声检测信号处理技术[J]. 无损检测, 2014, 36(12): 56-59.
YANG Bo, FAN Hong. Signal Processing Technique of Virtual Ultrasonic Testing for Pipe with Rough Surface[J]. Nondestructive Testing, 2014, 36(12): 56-59.
Citation: YANG Bo, FAN Hong. Signal Processing Technique of Virtual Ultrasonic Testing for Pipe with Rough Surface[J]. Nondestructive Testing, 2014, 36(12): 56-59.

钢管虚拟超声检测信号处理技术

详细信息
    作者简介:

    杨博(1987-), 男, 硕士, 助理工程师, 主要从事无损检测方法研究工作。

  • 中图分类号: TG115.28

Signal Processing Technique of Virtual Ultrasonic Testing for Pipe with Rough Surface

  • 摘要: 针对表面粗糙的钢管进行超声波检测时存在的噪声高、信噪比低的问题, 利用自行搭建的虚拟超声检测信号处理系统, 对表面粗糙钢管的超声检测信号分别进行了基于传统傅里叶变换的频谱分析和FIR滤波以及基于小波变换的时频分析和小波去噪。通过对比试验发现, 基于小波变换的信号处理技术可以对表面粗糙钢管的超声检测达到更好的去噪效果。
    Abstract: Using the signal processing system of virtual ultrasonic testing which was designed by ourselves, the ultrasonic testing signal of pipe with rough surface has been processed based on the Fourier transform and Wavelet transform respectively to solve the problem of low signal-to-noise ratio. The signal processing work that based on the Fourier transform is mainly refers to the spectrum analysis and FIR filter. The signal processing work based on the Wavelet transform is mainly refers to the time-frequency analysis and Wavelet denoising. By comparing the experimental results, it has shown that the Wavelet transform method was better than the Fourier transform when processing the ultrasonic testing signal of pipe with rough surface.
  • [1] 李光海,沈功田,李鹤年.工业管道无损检测技术[J].无损检测,2006,28(2):89-93.
    [2] 刘贵民,张昭光.超声检测中表面粗糙度引起的声衰减补偿[J].无损检测,2007,9(4):206-207.
    [3] JB/T 4730—2005.承压设备无损检测(JB/T 47303《超声检测》)[S].
    [4] 聂向晖,谭依,王秀梅.小口径无缝钢管超声波探伤[J].无损探伤,2002(4):17-18.
    [5] 陈敏,汤晓安.LabVIEW的虚拟仪器数据接口设计与实现[J].中国测试技术,2004,30(5):52-54.
计量
  • 文章访问数:  0
  • HTML全文浏览量:  0
  • PDF下载量:  1
  • 被引次数: 0
出版历程
  • 收稿日期:  2014-01-08

目录

    /

    返回文章
    返回