Earticle

초록

영어

Aiming at the problem of traditional nondestructive testing steel pipe defect, Ultrasonic testing system based on Virtual Instrument was designed. The hardware platform is the signal source which is based on micro-controller, and the HS4 data acquisition card by USB bus. The software platform adopts the LabVIEW to program by using the multithread to acquire all kinds of signal by real-time. The nondestructive feature was found by using the filter, STFT analysis and joint time domain analysis. The designed system has been used to the pipe defect inspection of some company, which is stable and can achieve an anticipant effect.

목차

Abstract
 1. Introduction
 2. System Composition and Principle
  2.1. System Composition
  2.2. System Principle
  2.3 Data Acquisition Card——HS4
 3. Software Design Based on Virtual Instrument
  3.1 The Pulse Generation Unit
  3.2 Echo Signal Collect
  3.3 Data Store
 4. The Algorithm and Application of Defect Identification
  4.1 Defect Character Analysis Unit
  4.2 STFT Algorithm
  4.3 Fast Hilbert Transform
  4.4 Defect Location
  4.5 Identify Defect
 5. Conclusion
 Acknowledgements
 7. References

키워드

저자

• Yin Ming [ Department of Electronic Engineering, Naval University of Engineering, China ]
• Ye Xiaohui [ Department of Electronic Engineering, Naval University of Engineering, China ]
• Wang Hongxia [ Department of Electronic Engineering, Naval University of Engineering, China ]
• Pan Hongbing [ Department of Electronic Engineering, Naval University of Engineering, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Signal Processing, Image Processing and Pattern Recognition

• 간기

  격월간

• pISSN

  2005-4254

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605