
doi: 10.1063/1.4940522
In the present work, the Total Focusing Method (TFM) is used to image flaws in coarse-grained steels with a contact phased-array probe. In order to reduce the noise introduced by the heterogeneous structure, as well as artifacts due to surface guided waves, the Decomposition of the Time Reversal Operator method is performed before calculating TFM images.
instrumentation, transducer array, [SPI.ACOU] Engineering Sciences [physics]/Acoustics [physics.class-ph], [PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [INFO.INFO-TS] Computer Science [cs]/Signal and Image Processing, imaging, ultrasounds, non destructive testing
instrumentation, transducer array, [SPI.ACOU] Engineering Sciences [physics]/Acoustics [physics.class-ph], [PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [INFO.INFO-TS] Computer Science [cs]/Signal and Image Processing, imaging, ultrasounds, non destructive testing
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