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http://dx.doi.org/10.6109/jkiice.2007.11.5.921

Analysis of Information Related to Object Fragmentation Using Radiated Sounds Due to Underwater Shock Wave  

Jang, Yoon-Seok (부경대학교 전기제어공학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.11, no.5, 2007 , pp. 921-925 More about this Journal
Abstract
This paper investigates the information related to the radiated sounds during treatment using the extracorporeal shock wave lothotriptor(ESWL). First, we observe the vibration of the objects from the radiated sounds and extract the information about the change of the peak frequency from the relation between the vibration and the radiated sounds. Next, we observe the change of the peak frequency according to the position of the focus and demonstrate that it is more difficult to vibrate objects exactly at the focal point than above or below the focus of the ESWL device. Lastly, we analyze the relation between the cavitation and the radiated sounds and examine the benefiting condition for the object fragmentation.
Keywords
ESWL; Radiated sounds; Bending vibration; Power spectrum; Peak Frequency; Cavitation bubble;
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