Acoustic emission linear pulse holography
Abstract
Defects in a structure are imaged as they propagate, using their emitted acoustic energy as a monitored source. Short bursts of acoustic energy propagate through the structure to a discrete element receiver array. A reference timing transducer located between the array and the inspection zone initiates a series of time-of-flight measurements. A resulting series of time-of-flight measurements are then treated as aperture data and are transferred to a computer for reconstruction of a synthetic linear holographic image. The images can be displayed and stored as a record of defect growth.
- Inventors:
-
- Richland, WA
- West Richland, WA
- Issue Date:
- Research Org.:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- OSTI Identifier:
- 865528
- Patent Number(s):
- 4531411
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G - PHYSICS G01 - MEASURING G01S - RADIO DIRECTION-FINDING
- DOE Contract Number:
- AT(45-1)-1830
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- acoustic; emission; linear; pulse; holography; defects; structure; imaged; propagate; emitted; energy; monitored; source; bursts; discrete; element; receiver; array; reference; timing; transducer; located; inspection; zone; initiates; series; time-of-flight; measurements; resulting; treated; aperture; data; transferred; computer; reconstruction; synthetic; holographic; image; images; displayed; stored; record; defect; growth; time-of-flight measurements; acoustic energy; acoustic emission; emission line; holographic image; linear pulse; time-of-flight measurement; receiver array; /73/
Citation Formats
Collins, H Dale, Busse, Lawrence J, and Lemon, Douglas K. Acoustic emission linear pulse holography. United States: N. p., 1985.
Web.
Collins, H Dale, Busse, Lawrence J, & Lemon, Douglas K. Acoustic emission linear pulse holography. United States.
Collins, H Dale, Busse, Lawrence J, and Lemon, Douglas K. Tue .
"Acoustic emission linear pulse holography". United States. https://www.osti.gov/servlets/purl/865528.
@article{osti_865528,
title = {Acoustic emission linear pulse holography},
author = {Collins, H Dale and Busse, Lawrence J and Lemon, Douglas K},
abstractNote = {Defects in a structure are imaged as they propagate, using their emitted acoustic energy as a monitored source. Short bursts of acoustic energy propagate through the structure to a discrete element receiver array. A reference timing transducer located between the array and the inspection zone initiates a series of time-of-flight measurements. A resulting series of time-of-flight measurements are then treated as aperture data and are transferred to a computer for reconstruction of a synthetic linear holographic image. The images can be displayed and stored as a record of defect growth.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1985},
month = {Tue Jan 01 00:00:00 EST 1985}
}
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