Detection of Internal Micro Defects by Nonlinear Resonant Ultrasonic Method Using Water Immersion
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概要
- 論文の詳細を見る
A nonlinear resonant ultrasonic method using water immersion has been developed to detect micro defects in solids. This method allows us to reduce the strong nonlinearity of water and amplify the weak second harmonics generated at internal micro defects. In this method, both the fundamental and second harmonic frequencies are selected to match the resonant frequencies based on the resonant spectra of a sample. The detection of the micro defects in SiCf/Ti composite has been demonstrated.
- INSTITUTE OF PURE AND APPLIED PHYSICSの論文
- 2004-05-15
著者
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Ohara Yoshikazu
Department Of Cardiology Kochi Health Sciences Center
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Ohara Yoshikazu
Department of Mechanical Engineering, Nagoya Institute of Technology, Gokiso-cho, Nagoya, 466-8555, Japan
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KAWASHIMA Koichiro
Department of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, University of Tokyo
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