Design of pulsed eddy-current nondestructive test system

WANG Ya-ping

doi:10.13873/j.1000-97872007.08.036

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Design of pulsed eddy-current nondestructive test system

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- Design of pulsed eddy-current nondestructive test system
- Issue 8, Pages: 76-78(2007)
- 作者机构：
  
  西南科技大学制造科学与工程学院,四川,绵阳,621010
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872007.08.036
  CLC： TH878
- Published：2007
- 稿件说明：
移动端阅览
[1]王雅萍.脉冲涡流无损检测系统的设计[J].传感器与微系统,2007(08):76-78.

WANG Ya-ping. Design of pulsed eddy-current nondestructive test system[J]. 2007, (8): 76-78.
[1]王雅萍.脉冲涡流无损检测系统的设计[J].传感器与微系统,2007(08):76-78. DOI： 10.13873/j.1000-97872007.08.036.

WANG Ya-ping. Design of pulsed eddy-current nondestructive test system[J]. 2007, (8): 76-78. DOI： 10.13873/j.1000-97872007.08.036.

摘要

阐述了脉冲涡流无损检测系统的基本原理和组成。介绍了利用圆柱形线圈作为传感器进行金属导体表面裂纹的无损检测系统的激励源、信号放大及A/D转换部分。经实验表明:采用激励频率为1000Hz

占空比45%

5%时的测试效果最佳;激励电压采用7.5V

信号总放大倍数为1000得到的信号最适合PCI1712进行数据采集;缺陷深度与涡流的峰值电流相对应。

Abstract

The theory and makeup of the pulsed eddy-current（PEC） nondestructive testing（NDT）system

which is included the excitation source

signal magnifying and A/D transformation

is presented.The surface crack on the metal tested by using the cylinder inductance sensor is introduced.When the excitation frequency is 1 000 Hz and time-empty ratio is 45 %

5 %

the experiment test results are optimum

as well as for PCI1712 data collections when the excitation voltage is 7.5 V and signal amplifier multiple is 1 000.The crack depths is corresponding to the eddy-current scope.

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references

涡流检测的信号处理技术 [J]. 游凤荷,何福有,魏莉,孙砚飞. 无损检测 . 2003(08)

电磁检测[M]. 机械工业出版社 , 任吉林等编著, 2000

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Related Institution

College of Mechanical Engineering, Hebei University of Technology

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Key Laboratory of Nondestructive Testing,Fujian Polytechnic Normal University

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