Acoustic emission linear pulse holography

Patent · Tue Oct 25 00:00:00 EDT 1983

OSTI ID:6672756

Collins, H D; Busse, L J; Lemon, D K

This device relates to the concept of and means for performing Acoustic Emission Linear Pulse Holography, which combines the advantages of linear holographic imaging and Acoustic Emission into a single non-destructive inspection system. This unique system produces a chronological, linear holographic image of a flaw by utilizing the acoustic energy emitted during crack growth. The innovation is the concept of utilizing the crack-generated acoustic emission energy to generate a chronological series of images of a growing crack by applying linear, pulse holographic processing to the acoustic emission data. The process is implemented by placing on a structure an array of piezoelectric sensors (typically 16 or 32 of them) near the defect location. A reference sensor is placed between the defect and the array.

• DOE Contract Number: AC06-76RL01830
• Assignee: Dept. of Energy
• Application Number: ON: DE84014519
• OSTI ID: 6672756
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
ACOUSTIC EMISSION TESTING
CRACK PROPAGATION
ACOUSTIC MONITORING
HOLOGRAPHY
INSPECTION
INVENTIONS
PIEZOELECTRICITY
ACOUSTIC TESTING
ELECTRICITY
MATERIALS TESTING
MONITORING
NONDESTRUCTIVE TESTING
TESTING
440300* - Miscellaneous Instruments- (-1989)