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http://dx.doi.org/10.9718/JBER.2011.32.3.264

The Acoustic Output Estimation for Therapeutic Ultrasound Equipment using Electro-Acoustic Radiation Conductance  

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)
Publication Information
Journal of Biomedical Engineering Research / v.32, no.3, 2011 , pp. 264-269 More about this Journal
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
therapeutic ultrasound; electro-acoustic radiation conductance; ultrasonic power; radiation force balance;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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