Acoustic emission linear pulse holography
Patent
·
OSTI ID:6672756
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
- Patent Number(s):
- None
- Application Number:
- ON: DE84014519
- OSTI ID:
- 6672756
- Country of Publication:
- United States
- Language:
- English
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