Laser ultrasonic/thermographic inspection system is conceptual instrument used in nondestructive inspection of large areas of structures for subsurface defects. For example, operated in field to examine aircraft and pressure vessels for hidden cracks. System would not require contact with inspected structure or use of ultrasonic-coupling medium. Instrument obtains data in ultrasonic and thermographic C-scans over structural surfaces with contours characterized by surface normal vectors varying by angles as large as 45 degrees.
Laser-Scan Ultrasonic/Thermographic Inspection System
NASA Tech Briefs ; 20 , 2
1996-02-01
Miscellaneous
No indication
English
Laser-Scan Ultrasonic-Thermographic Inspection System
Online Contents | 1996
Thermographic Inspection Of Coatings
NTRS | 1988
|Thermographic inspection of welded contacts
NTRS | 1979
|