Reflection-Type Ultrasonic Phase Conjugate Imaging System with a Waveguide
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概要
- 論文の詳細を見る
A reflection-type ultrasonic C-mode imaging system with an ultrasonic phase conjugator and a waveguide has been built, and images at 10 MHz have been obtained for metal samples with surface undulations. Surface or sub-surface elastic properties were visualized with a small influence of the surface roughness. The waveguide worked to enlarge the effective aperture of the phase conjugator, to smooth the incident-angle dependence of the phase conjugate reflectivity, and to improve the signal-to-noise ratio of the phase conjugate signals. Schlieren images of the ultrasonic fields in the system are also presented.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2005-06-15
著者
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OHNO Masahiro
Faculty of Engineering, Chiba Institute of Technology
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KOKUBO Akira
Institute of Industrial Science, University of Tokyo
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YAMAMOTO Ken
Kobayasi Institute of Physical Research
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Kato Takahiro
Faculty Of Engineering And Resource Science Akita University
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Kato Takahiro
Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan
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Kokubo Akira
Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
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