skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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}
}