원문정보
보안공학연구지원센터(IJSIP)
International Journal of Signal Processing, Image Processing and Pattern Recognition
Vol.8 No.6
2015.06
pp.107-116
피인용수 : 0건 (자료제공 : 네이버학술정보)
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
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
저자정보
참고문헌
자료제공 : 네이버학술정보