Application of wavelet transformation in pulsed eddy current signal processsing

ZHOU De-qiang1; TIAN Gui-yun1; WANG Hai-tao1; YAO En-tao1

doi:10.13873/j.1000-97872008.10.009

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Application of wavelet transformation in pulsed eddy current signal processsing

更新时间：2025-09-11

- Application of wavelet transformation in pulsed eddy current signal processsing
- Vol. 27, Issue 10, Pages: 115-117+120(2008)
- 作者机构：
  
  1. 南京航空航天大学自动化学院
  2. Newcastle大学计算机与电子工程学院
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872008.10.009
  CLC： TH878
- Published：2008
- 稿件说明：
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[1]周德强,田贵云,王海涛,姚恩涛.小波变换在脉冲涡流检测信号中的应用[J].传感器与微系统,2008,27(10):115-117+120.

ZHOU De-qiang1, TIAN Gui-yun1, WANG Hai-tao1, et al. Application of wavelet transformation in pulsed eddy current signal processsing[J]. 2008, 27(10): 115-117+120.
[1]周德强,田贵云,王海涛,姚恩涛.小波变换在脉冲涡流检测信号中的应用[J].传感器与微系统,2008,27(10):115-117+120. DOI： 10.13873/j.1000-97872008.10.009.

ZHOU De-qiang1, TIAN Gui-yun1, WANG Hai-tao1, et al. Application of wavelet transformation in pulsed eddy current signal processsing[J]. 2008, 27(10): 115-117+120. DOI： 10.13873/j.1000-97872008.10.009.

摘要

脉冲涡流检测方法是涡流检测技术的一个新兴分支。通过实验装置采集了含有噪声的缺陷信号。介绍了小波去噪的基本原理

研究了脉冲涡流检测信号中的去噪问题

采用小波系数去噪对脉冲涡流检测信号进行了处理。实验结果表明:采用小波系数去噪的方法可使缺陷信号的信噪比得到显著的提高。

Abstract

Pulsed eddy current（PEC） testing is a new development area of eddy current testing technology.The PEC signal is acquired from the data collection device.The theory of wavelet transformation is introduced.The problem of noise cancellation for the pulsed eddy current is researched.The PEC signal noise is cancelled by wavelet transformation.The experiment results show that the signal ratio of PEC signal is improved significantly.

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references

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