sonic flaw detection

sonic flaw detection

[′sän·ik ′flȯ di‚tek·shən]
(engineering)
The process of locating imperfections in solid materials by observing internal reflections or a variation in transmission through the materials as a function of sound-path location.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.