Techniques for enhancing laser ultrasonic nondestructive evaluation
Abstract
Ultrasonic nondestructive evaluation is an extremely powerful tool for characterizing materials and detecting defects. A majority of the ultrasonic nondestructive evaluation is performed with piezoelectric transducers that generate and detect high frequency acoustic energy. The liquid needed to couple the high frequency acoustic energy from the piezoelectric transducers restricts the applicability of ultrasonics. For example, traditional ultrasonics cannot evaluate parts at elevated temperatures or components that would be damaged by contact with a fluid. They are developing a technology that remotely generates and detects the ultrasonic pulses with lasers and consequently there is no requirement for liquids. Thus the research in laser-based ultrasound allows them to solve inspection problems with ultrasonics that could not be done before. This technology has wide application in many Lawrence Livermore National Laboratory programs, especially when remote and/or non-contact sensing is necessary.
- Authors:
- Publication Date:
- Research Org.:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE Office of Defense Programs (DP) (US)
- OSTI Identifier:
- 9625
- Report Number(s):
- UCRL-ID-133160; YN0100000; 97-ERD-083
YN0100000; 97-ERD-083; TRN: AH200124%%345
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: PBD: 16 Feb 1999
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; ULTRASONIC TESTING; DEFECTS; LASERS; TRANSDUCERS; ULTRASONIC WAVES; REMOTE HANDLING; REMOTE SENSING
Citation Formats
Candy, J, Chinn, D, Huber, R, Spicer, J, and Thomas, G. Techniques for enhancing laser ultrasonic nondestructive evaluation. United States: N. p., 1999.
Web. doi:10.2172/9625.
Candy, J, Chinn, D, Huber, R, Spicer, J, & Thomas, G. Techniques for enhancing laser ultrasonic nondestructive evaluation. United States. https://doi.org/10.2172/9625
Candy, J, Chinn, D, Huber, R, Spicer, J, and Thomas, G. 1999.
"Techniques for enhancing laser ultrasonic nondestructive evaluation". United States. https://doi.org/10.2172/9625. https://www.osti.gov/servlets/purl/9625.
@article{osti_9625,
title = {Techniques for enhancing laser ultrasonic nondestructive evaluation},
author = {Candy, J and Chinn, D and Huber, R and Spicer, J and Thomas, G},
abstractNote = {Ultrasonic nondestructive evaluation is an extremely powerful tool for characterizing materials and detecting defects. A majority of the ultrasonic nondestructive evaluation is performed with piezoelectric transducers that generate and detect high frequency acoustic energy. The liquid needed to couple the high frequency acoustic energy from the piezoelectric transducers restricts the applicability of ultrasonics. For example, traditional ultrasonics cannot evaluate parts at elevated temperatures or components that would be damaged by contact with a fluid. They are developing a technology that remotely generates and detects the ultrasonic pulses with lasers and consequently there is no requirement for liquids. Thus the research in laser-based ultrasound allows them to solve inspection problems with ultrasonics that could not be done before. This technology has wide application in many Lawrence Livermore National Laboratory programs, especially when remote and/or non-contact sensing is necessary.},
doi = {10.2172/9625},
url = {https://www.osti.gov/biblio/9625},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 16 00:00:00 EST 1999},
month = {Tue Feb 16 00:00:00 EST 1999}
}