Detection of Second Harmonic Wave from the Closed Crack Using Finite amplitude Ultrasonic Wave
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- IMANO Kazuhiko
- Department of electrical and Electronic Engineering, Faculty of Engineering and Resource Science
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- MUTO Azusa
- Department of electrical and Electronic Engineering, Faculty of Engineering and Resource Science
Bibliographic Information
- Other Title
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- 有限振幅超音波を用いた閉口クラックからの２次高調波の検出
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Abstract
Detection method for the closed crack existed in the glass plate using finite amplitude ultrasonic guided wave is described. The received signal is analyzed by the wavelet transform to identify the mode of the guided wave using group velocity dispersion curves. As the results, finite amplitude Rayleigh wave propagation is identified. Using the finite amplitude Rayleigh wave, increase in 6dB of the second harmonic components generated from a closed crack in the glass plate is observed. Rapid increase of the second harmonic component at the condition that width of closed crack, less than 2nm, is equal to the vibration amplitude of Rayleigh wave is also found out. Potential of closed crack detection is clarified by the use of finite amplitude guided wave system.
Journal
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- Journal of the Society of Materials Engineering for Resources of Japan
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Journal of the Society of Materials Engineering for Resources of Japan 20 (1), 12-18, 2007
The Society of Materials Engineering for Resources of JAPAN
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Keywords
Details 詳細情報について
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- CRID
- 1390282679320800384
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- NII Article ID
- 130003816611
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- NII Book ID
- AN10140273
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- ISSN
- 18846610
- 09199853
- http://id.crossref.org/issn/09199853
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- HANDLE
- 10295/622
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed