Time recompression of dispersive Lamb waves using a time reversal mirror-application to flaw detection in thin plates

In this paper, the time reversal processing is applied to compensate for the effect of dispersive Lamb waves. A time reversal mirror, made of a 32 element transducer array is coupled to a Duralumin plate with a Plexiglas wedge. In the first experiment, a Nd-YAG laser is used to create a point source...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Ing, R.K., Fink, M.
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Bandwidth Dispersion Frequency Inspection Mirrors Optical arrays Optical coupling Surface emitting lasers Time measurement Transducers
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