Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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The Acoustic Output Estimation for Therapeutic Ultrasound Equipment using Electro-Acoustic Radiation Conductance

전기-음향 방사컨덕턴스를 이용한 치료용 초음파 자극기의 음향출력 예측

  • Yun, Yong-Hyeon (Department of Electrical & Electronic Engineering, Graduate School of Yonsei University) ;
  • Jho, Moon-Jae (Division of Technology Services, Korea Research Institute of Standards and Science) ;
  • Kim, Yong-Tae (Division of Physical Metrology, Korea Research Institute of Standards and Science) ;
  • Lee, Myoung-Ho (Department of Electrical & Electronic Engineering, Graduate School of Yonsei University)
  • 윤용현 (연세대학교 대학원 전기전자공학과) ;
  • 조문재 (한국표준과학연구원 성과확산부 표준보급센터) ;
  • 김용태 (한국표준과학연구원 기반표준본부 유동음향센터) ;
  • 이명호 (연세대학교 대학원 전기전자공학과)
  • Received : 2011.05.06
  • Accepted : 2011.06.29
  • Published : 2011.09.30
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Abstract

To increase therapeutic efficiency and biological safety, it is important to precision control of acoustic output for therapeutic ultrasound equipment. In this paper, the electro-acoustic radiation conductance, one of electroacoustic characteristics of therapeutic ultrasound equipment, was measured by the radiation force balance method according to IEC 61161 standards and the acoustic output was estimated using the electro-acoustic radiation conductance. The estimation of acoustic output was conducted to continuous wave mode and pulse wave mode of duty cycle between 20% and 80%. The differences between prediction values and measurement results are within 5% of measurement uncertainty, which is a reasonably good agreement. The results show that acoustic output controlled by electro-acoustic radiation conductance was found to be an effective method.

Keywords

References

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