Surface-wave nondestructive testing using 1-dimensional acoustic holography

Surface-wave nondestructive testing using 1-dimensional acoustic holography

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A new method of surface nondestructive testing using 1-dimensional acoustic holography has been demonstrated. A simulated defect 0.5 mm in diameter and 1 μm thick has been clearly resolved using 60 MHz acoustic surface waves, propagating along a quartz substrate.


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