한국정밀공학회:학술대회논문집 (Proceedings of the Korean Society of Precision Engineering Conference)
- 한국정밀공학회 1997년도 추계학술대회 논문집
- /
- Pages.245-248
- /
- 1997
- /
- 2005-8446(pISSN)
초음파 광역 감쇠의 온도 특성에 관한 연구
A Study on Temperature Features of Broadband Ultrasonic Attenuation
초록
The distilled water is used for the ultrasonic wave propagating material in the measurements of broadband ultrasonic attenuation (BUA) that is applied in industrial and medical applications, The acoustic impedance of water is significantly changed with its temperature. Therefore, the quantitative evaluation of BUA with temperature and the ultrasonic wave propagating distance is highly needed. In this study, we evaluated the variation of attenuation with change in temperature. To measure the variation of BUA in the low frequency region at the temperatures, 27