Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Analysis of Information Related to Object Fragmentation Using Radiated Sounds Due to Underwater Shock Wave

수중 충격파에 의한 방사음을 이용한 대상물 파쇄에 관련된 정보분석

  • 장윤석 (부경대학교 전기제어공학부)
  • Published : 2007.05.31
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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.

본 논문은 체외 충격파 파쇄 장치를 사용하여 결석을 파쇄할 때 방사되는 소리에 관계된 정보를 분석한 것이다. 먼저, 방사음으로부터 대상물의 진동을 관찰하고, 대상물의 진동과 방사음 간의 관계를 통하여 피크주파수의 변화에 관한 정보를 추출하였다. 다음에는, 초점의 위치에 따른 피크주파수의 변화를 관찰하여 초점의 바로 위나 아래 부분보다 정확한 초점에서 대상물을 진동시키기가 더욱 어렵다는 사실을 입증하였다. 마지막으로, 캐비테이션과 방사음과의 관계를 분석하여 대상물의 파쇄에 더 유리한 위치를 조사하였다.

Keywords

References

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