Narrowband laser generation/air-coupled detection: ultrasonic system for on-line process control of composites

Ultrasonics - Tập 37 - Trang 329-334 - 1999
Kevin C Baldwin1, Tobias P Berndt2, Michael J Ehrlich2
1Applied Physics Laboratory, Air Defense Systems Division, Johns Hopkins University, Laurel, MD 20273, USA
2Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA

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