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Apparatus and method for detecting fatigue cracks using infrared thermography 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01N-021/71
출원번호 US-0588909 (1990-09-27)
발명자 / 주소
  • Devitt John W. (Loveland OH) Bantel Thomas E. (Cincinnati OH) Sparks Joseph M. (Newport KY) Kania Janet S. (Cincinnati OH)
출원인 / 주소
  • General Electric Company (Cincinnati OH 02)
인용정보 피인용 횟수 : 39  인용 특허 : 0

초록

A method and apparatus for detecting a defect in a workpiece are disclosed. The workpiece is positioned with a surface of the workpiece to be inspected in an optical path of an infrared radiation detector. A selected portion of the workpiece is heated by scanning with electromagnetic radiation for a

대표청구항

A method for detecting a defect in a workpiece, comprising the steps of: (a) positioning a surface of the workpiece to be inspected in an optical path of an infrared radiation detector; (b) generating a graph of irradiance versus distance along a selected portion of the workpiece to establish an ori

이 특허를 인용한 특허 (39)

  1. Koizumi Takao,JPX, Apparatus for inspecting bump junction of flip chips and method of inspecting the same.
  2. Koizumi Takao,JPX, Apparatus for inspecting bump junction of flip chips and method of inspecting the same.
  3. Engelbart, Roger W.; Smith, Nathan R.; Shawgo, Loyal B., Applique and method for thermographic inspection.
  4. Zombo, Paul J., Coating method for non-destructive examination of articles of manufacture.
  5. Lesniak Jon R., Coating tolerant thermography.
  6. Bales, Maurice J.; Dalio, Brian A.; Johnsen, David G., Computerized operator assistance for turbine component inspection.
  7. Hamelin,Michel; Masek,William; Depuydt,Joseph A., Crack detection in razor blades.
  8. Boucourt, Gerard, Device for monitoring an enclosure, in particular the hold of an aircraft.
  9. Cannon Michael W., Examination system for architectural structure exteriors.
  10. Consadori Franco (Salt Lake City UT) Field D. George (Pleasant Grove UT) Banta Kevin D. (Sandy UT) Nichols Gary S. (Sandy UT), Gas fired appliance igntion and combustion monitoring system.
  11. Boudin, Dustin C.; Kulkarni, Anand A., Laser thermography.
  12. Endo Toshio,JPX ; Yagi Tomikazu,JPX ; Yamada Ryuzo,JPX ; Ishikawa Nobuo,JPX ; Yano Taizo,JPX, Method and an apparatus for flaw detection.
  13. Shepard,Steven M., Method and apparatus for detecting kissing unbond defects.
  14. Nightingale, Gerald B.; Little, Francis Howard; Janning, John C., Method and apparatus for finding anomalies in finished parts and/or assemblies.
  15. Cramer K. Elliott ; Winfree William P., Method and apparatus for the portable identification of material thickness and defects using spatially controlled heat application.
  16. Kirchner, Franz; Raake, Dieter; Reymann, Helge, Method and device for coating high temperature components by means of plasma spraying.
  17. Lounis, Brahim; Orrit, Michel; Tamarat, Philippe; Boyer, David; Cognet, Laurent, Method and device for photothermal imaging tiny particles immersed in a given medium.
  18. Laurent Legrandjacques FR; Christophe Dehan FR; Jean-Claude Krapez FR; Francois Le Poutre FR, Method and device for the inspection of a material by thermal imaging.
  19. Banaszak, David; Dale, Gary; Jordan, Jeffrey D.; Watkins, A. Neal, Method and device for visually measuring structural fatigue using a temperature sensitive coating.
  20. Rothenfusser,Max; Homma,Christian; Zombo,Paul John; Vona,Paul D.; Shannon,Robert E., Method for calibrating and enhancing flaw detection of an acoustic thermography system.
  21. Devitt John W. (Loveland OH) Edwards Thomas R. (Pelzer SC) Bantel Thomas E. (Cincinnati OH), Method for nondestructive/noncontact detection and quantification of alpha case on a surface of a workpiece made of tita.
  22. John C. Murphy ; Robert Osiander ; Jane W. Maclachlan Spicer, Method for nondestructive/noncontact microwave detection of electrical and magnetic property discontinuities in materials.
  23. Laurent Legrandjacques FR; Christophe Dehan FR; Jean-Claude Krapez FR; Francois Le Poutre FR, Method for the inspection of a part by thermal imaging.
  24. Bellabal, Francois Robert; Florent, Nicolas, Method of producing suspension for a structure in a turbojet engine using a hyperstatic trellis with pre-stressed link elements.
  25. Lewis, Oscar O.; Schreiner, Thomas C.; Felix, Miguel A., Methods and system for ultrasonic thermographic non-destructive examination for enhanced defect determination.
  26. Hopple, Michael Robert; Dixon, Elizabeth Lokenberg; Herd, Kenneth Gordan; Mohr, Gregory Alan; Bueno, Clifford, Methods and systems for inspecting aircraft fuselage frames.
  27. Devitt, John William; Bauco, Anthony S.; Cantello, Craig Alan; Harding, Kevin G., Methods for determining the depth of defects.
  28. Krishna, Pradeep Aadi Gopala; Ghosh, Dullal; Dugar, Saurav; Berkebile, Matthew Paul; Krull, Anthony Wayne, Methods, systems and apparatus for detecting material defects in combustors of combustion turbine engines.
  29. Watkins Michael, Process control by transient thermography.
  30. Watkins, Michael L.; Fleischhauer, Grier S.; Lilly, Jr., A. Clifton, Process control by transient thermography.
  31. Cote, Paul; Kendall, Gay; Todaro, Mark, Pulsed laser heating simulation of thermal damage on coated surface.
  32. Woods, Steven Charles; Baummer, James Carroll, System and method for qualifying usability risk associated with subsurface defects in a multilayer coating.
  33. Alloo, Richard; Saito, Kozo; Gharaibeh, Belal; Chuah, Keng; Akafuah, Nelson; Salaimeh, Ahmad, Systems and methods for detecting defects in coatings utilizing color-based thermal mismatch.
  34. Saito,Kozo; Hassan Ali,Mohammed I.; Numasato,Akira; Omar,Mohammed A.; Sakakibara,Masahito; Suzuki,Toshikazu; Tanigawa,Yasuo, Systems and methods for inspecting coatings.
  35. Saito,Kozo; Hassan Ali,Mohammed I.; Numasato,Akira; Omar,Mohammed A.; Sakakibara,Masahito; Suzuki,Toshikazu; Tanigawa,Yasuo, Systems and methods for inspecting coatings, surfaces and interfaces.
  36. Ouyang,Zhong; Smith,Kevin D., Thermal imaging method and apparatus.
  37. Sandvoss,Rolf, Thermography method.
  38. Choi, Sukhwan, Turbine blade (bucket) health monitoring and prognosis using infrared camera.
  39. Ngo, Anh-Tuan, Weld inspection rig and related method for use.
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