Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Investigation of advanced acoustic and optical nondestructive evaluation techniques: Final report

Technical Report ·
OSTI ID:7048079
Research Project RP606-7 was initiated in 1980 to explore advanced acoustic and optical techniques for nondestructive evaluation of nuclear components. The program was intended to be open ended, in that new tasks could be added and old ones dropped as work progressed. The initial task was to evaluate optical sandwich holography as a means to characterize components before and after service use. The fringe patterns would than be compared to determine if any changes had occurred during service. This work was completed successfully. The second task was to determine how the ultrasonic tomography research, carried out under RP504-1, could be improved upon so that its potential for residual stress measurement could be fulfilled. Several of the road-blocks to this fulfillment, pointed out in NP-1234-SR were overcome in theory, but not put to the experimental test. The third and major task was to develop acoustical holography to the point of commercialization. Although EPRI had given considerable support to the development of acoustical holography, little attention had been paid to the engineering of a versatile, portable system. This deficiency has been corrected during the course of this program. A commercial system, the SDL-1000, is now available to potential users. The first production unit has been delivered to the EPRI NDE Center where it is being evaluated.
Research Organization:
Sigma Research, Inc., Redmond, WA (USA). Seattle Div.
OSTI ID:
7048079
Report Number(s):
EPRI-NP-4897; ON: TI87920135
Country of Publication:
United States
Language:
English