Abstract
We have been developing Sonic IR imaging NDE technique which employs a short ultrasonic pulse, typically a fraction of a second, to excite the defects in materials while an infrared camera images the time evolution of the heating effect to identify the defective areas. In addition, we use laser vibrometers to monitor the vibrational behavior of a sample. We have learned that geometry plays an important role in Sonic IR Imaging. In this paper, we present some results of our study on these geometrical effects in Sonic IR Imaging.
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