Selective Source Reduction to Identify Masked Smaller Sources Using Time Reversed Acoustics (tra)
نویسندگان
چکیده
This paper introduces a method to selectively reduce large time-reversed focal events to provide the potential to illuminate smaller events which have been masked by the larger one. The method is demonstrated for two elastic wave pulses emitted simultaneously from two spatially separated sources. The method improves upon the spatial resolution abilities of time reversed acoustics in nondestructive evaluation applications to identify characteristics of a sample such as cracks (nonlinear elastic wave scattering sources).
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تاریخ انتشار 2015