Sensitivity Improvement of the Ultrasound Diagnosis Using the Mechanical Antiphase Pulse

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  • 機械的逆位相信号を用いた超音波異常診断の高感度化

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<p>In ultrasonic non-destructive testing, a reflected pulse from the surface of the test object overlaps a reflected pulse from the near-surface defect. In this study, we propose a method to cancel out the reflected pulse from the surface with a new reflected pulse which is generated in the new well-devised delay line. This mechanical signal processing improves the sensitivity to the defect. This paper shows validation of the proposed method with basic experiments.</p>

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