Proceedings of the Acoustical Society of Korea Conference (한국음향학회:학술대회논문집)
- spring
- /
- Pages.525-528
- /
- 2002
Acoustic Properties of Solid Materials: Sound Speed, Transmission Coefficient, and Attenuation
- Roh Heui-Seol (Acoustics Research Laboratory and BK21 Physics Research Division Department of Physics, Sung Kyun Kwan University) ;
- Lee Kang Il (Acoustics Research Laboratory and BK21 Physics Research Division Department of Physics, Sung Kyun Kwan University) ;
- Jung Kyung-Il (Acoustics Research Laboratory and BK21 Physics Research Division Department of Physics, Sung Kyun Kwan University) ;
- Yoon Suk Wang (Acoustics Research Laboratory and BK21 Physics Research Division Department of Physics, Sung Kyun Kwan University)
- Published : 2002.07.01
Abstract
The speed of sound, transmission coefficient, and attenuation are measured around the center frequency 1 and 2 MHz in solid materials such as bone, sediment, rubber, and Lucite materials. Common and different characteristics of such materials in the sound speed, transmission coefficient, and attenuation are discussed. Ambiguities in estimating such acoustic characteristics we also addressed. Ultrasonic properties of the first and second kind waves are clarified for different materials. Discussions are concentrated on classes of sound speed, broadband ultrasonic attenuation (BUA), and correlations of sound speed and BUA with apparent density. New correlations of inverse sound speed square and BUA with apparent density are suggested.
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