한국음향학회지 (The Journal of the Acoustical Society of Korea)

  • 제29권6호
  • /
  • Pages.355-364
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  • 2010
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  • 1225-4428(pISSN)
  • /
  • 2287-3775(eISSN)
한국음향학회 (The Acoustical Society of Korea)
권호 표지
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방사힘 측정법을 이용한 초음파 진단장치용 배열 탐침자의 음향파워 측정시스템

Acoustic Power Measurement System of Array Probes for Ultrasonic Diagnostic Equipment Using Radiation Force Balance Methods

  • 윤용현 (연세대학교 전기전자공학과) ;
  • 조문재 (한국표준과학연구원 성과확산부) ;
  • 김용태 (한국표준과학연구원 기반표준부) ;
  • 이명호 (연세대학교 전기전자공학과)
  • 투고 : 2010.02.16
  • 심사 : 2010.06.30
  • 발행 : 2010.08.31
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초록

초음파 진단장치의 음향출력 특성은 전기음향 변환 장치인 배열 탐침자의 성능에 크게 영향을 받으며, 생물학적안전 측면에서 매우 중요하다. 본 논문에서는 초음파 진단장치용 배열 탐침자로부터 방사되는 음향파워를 소자별로 측정할 수 있는 자동화 시스템을 구성하였으며, 곡선형 탐침자의 경우 각 소자의 지향성이 측정에 미치는 영향을 확인하고 이를 보정하는 기법을 개발하였다. 선형, 위상형, 곡선형 배열 탐침자를 대상으로 음향파워 측정결과, 본 논문에서 제시하는 측정기법은 배열 탐침자의 음향파워 특성을 평가하는데 적합함을 확인하였다.

Considering biological safety, it is very important to measure acoustic power from ultrasonic array probe for diagnostic ultrasound imaging applications. In this paper, to measure acoustic power from each element on array probe for ultrasonic diagnostic equipment, we reconstruct and automate the acoustic power measurement system. The acoustic power from linear, phased and curved array were measured and analyzed. As a result of measurement, the effects caused by directivity of sound beam from curved array were founded. To remove these effects, we developed and applied the correction model. The proposed system is useful to evaluate characteristics of the acoustical output power of array probe.

키워드

참고문헌

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