Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1987.11a
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- Pages.383-386
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- 1987
A study on the construction of acoustic microscope and NDT technique
음향 현미경의 구성과 비파괴 검사 기술에 관한 연구
- Ko, Dae-Sik (Dept. of Electronics, Kyung Hee Univ.) ;
- Kim, Jang-Kwon (Dept. of Electronics, Kyung Hee Univ.) ;
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Jun, Kye-Suk
(Dept. of Electronics, Kyung Hee Univ.)
- Published : 1987.11.20
Abstract
In this paper, a low frequency acoustic microscope system has been built for the purpose of detecting sub-surface defects in materials. 100 won coin, aluminium, ceramics, I.C. are used for experimental and the acoustic microscope is operated in the focused and defocused mode at a frequency of 3 MHz. In experiment, it has shown that acoustic microscope has the resolution of 0.5mm and the defects presented on the surface and near surface of samples are detected by a monitor.
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