Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Identification of Sound Source Location Generated by Shock Wave for Medical Treatment

의료용 충격파에 의해 발생하는 음원 위치의 확인

  • 장윤석 (부경대학교 공과대학 전기·제어계측공학부) ;
  • 김석재 (한국해양수산연구원)
  • Published : 2003.10.01
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Abstract

When the piezoelectric extracorporeal shock wave lithotripter is operated. sounds are generated. In this paper, we present a fact that the sounds are radiated undoubtedly from the object to be hit by the shock waves. For this results. we use the method to identify the sound source location of the radiated sounds by estimating the distance and the bearing from the sound source using one hydrophone. In addition. we investigate the relation between the radiated sounds and the vibrations of the objects using bronze models of disc type with clear vibrating characteristics and present the results of experiments to be analyzed.

압전식 쇄석기를 이용하여 충격파를 대상물에 조사할 때 들리는 소리의 발생지가 바로 충격당하는 대상물이란 사실을 실험을 통하여 확인하였다. 하이드로폰과 소리가 발생되는 음원과의 거리 및 방위각을 추정함으로써 방사음의 위치를 추정하는 방법을 이용하였으며, 센서로서는 한 개의 하이드로폰을 사용하였다. 또한, 진동 특성이 뚜렷한 금속모델을 대상물로 선정하여 그 대상물로부터의 방사음과 진동과의 관계를 조사한 결과를 제시하여, 방사음이 대상물에 관한 정보를 포함하고 있다는 사실을 보다 명백히 검증하였다.

Keywords

References

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