Classification of pulsed eddy current GMR data on aircraft structures

NDT and E International

Volumn 43, Issue 2, 2010, Pages 141-144

  Kim, Jaejoon ^a   Yang, Guang ^b   Udpa, Lalita ^b   Udpa, Satish ^b  

^a Daegu University   (South Korea)

^b MICHIGAN STATE UNIVERSITY   (United States)

Author keywords

Giant magneto resistive (GMR) sensor; k means algorithm; Principal component analysis (PCA); Pulsed eddy current (PEC)

Indexed keywords

AIRCRAFT STRUCTURE; C-SCAN IMAGES; EXCITATION SOURCES; FEATURE EXTRACTION AND CLASSIFICATION; GIANT MAGNETO-RESISTIVE (GMR) SENSOR; GMR SENSORS; INDUCED EDDY CURRENTS; INSPECTION SYSTEM; K-MEANS ALGORITHM; PULSED EDDY CURRENT; RESPONSE SIGNAL; RIVET HEAD; TRANSIENT FIELDS; WAVE FORMS;

AIRCRAFT; AIRCRAFT MANUFACTURE; AIRFRAMES; CRACK DETECTION; EDDY CURRENT TESTING; EDDY CURRENTS; FEATURE EXTRACTION; GALVANOMAGNETIC EFFECTS; GIANT MAGNETORESISTANCE; MAGNETIC RECORDING; MAGNETOS; RIVETING; RIVETS; SENSORS; TWO DIMENSIONAL;

PRINCIPAL COMPONENT ANALYSIS;

EID: 73449090395     PISSN: 09638695     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.ndteint.2009.10.003     Document Type: Article

References (16)

1. Nair N., Melapudi V., Hector J., Liu X., Deng Y., Zeng Z., Udpa L., Thomas J.M., and Udpa S.A. GMR-based eddy current system for NDE of aircraft structures. IEEE Trans Magn 42 10 (2006) 3312-3314
2. Dogaru T., and Smith S.T. Giant magnetoresistence-based eddy-current sensor. IEEE Trans Magn 37 5 (2002) 3831-3838
3. Dogaru T., Smith C.H., Schneider R.W., and Smith S.T. Deep crack detection around fastener holes in airplane multi-layered structures using GMR-based eddy current probes. Proc AIP Conf 700 (2004) 398-405
4. Barend van den Bos, Stefan Sahl, Joakim Andersson. Automatic scanning with multi-frequency eddy current on multilayered structures. In: Proceedings of the 15th world conference on nondestructive testing, Roma, Italy 2000. October: 15-21.
5. William W.W. Moulder J. Low frequency pulsed eddy currents for deep penetration. Rev Progr QNDE 17 (1998) 291-298
6. Lepine B.A., Giguere J.S.R., Forsyth D.S., Dubois J.M.S., Chahbaz A. Applying pulsed eddy current NDI to the aircraft hidden corrosion problem. In: Proceedings of the fifth NASA/FAA/DoD conference on aging aircraft, Orlando, September 2001.
7. Jander A., Smith C., Schneider R. Magnetoresistive sensors for nondestructive evaluation. In: Proceedings of the 10th SPIE international symposium, nondestructive evaluation for health monitoring and diagnostics, Conference, March (5770), 2003. p. 1-13.
8. Tamburrino A., Ventre S., Ferrigno L., and Udpa S. Characterization and implementation of a GMR based probe for eddy current testing. Int J Appl Electromagn Mech 28 1-2 (2008) 329-336
9. Lay D. Linear algebra and it's applications (2000), Addison-Wesley, New York
10. Kim J., Ramuhalli P., Udpa L., and Udpa S. Automated multichannel signal classification systems for untrasonic nondestructive evaluation. Key Eng Mater 321-323 (2006) 1266-1269
11. Hotelling H. Analysis of A complex of statistical variables into principal components. J Ed Psych 1933;24:417-41, 498-520
12. Karhunen K. Uber lineare methoden in der Wahrsccheilichkeitsrechnung. Annales Academiae Scientiarum Fennicae, Seried A1: Math Phys 37 (1947) 3-79
13. Oja E. Neural networks, principal components, and subspaces. J Neural Syst 1 1 (1989) 61-68
14. Sophian A., GuiYun T., David T., and John R. A feature extraction technique based on principal component analysis for pulsed Eddy current NDT. NDT&E Int 36 (2003) 37-41
15. Kanungo T., Mount D.M., Netanyahu N., Piatko C., Silverman R., and Wu A.Y. An efficient k-means clustering algorithm: analysis and implementation. IEEE Trans Pattern Anal Mach Intell 24 (2002) 881-892
16. Frank Dellaert, The expectation maximization algorithm, GVU Center; College of Computing; Georgia Tech, GIT-GVU-02-20, 2002.