한국소음진동공학회논문집 (Transactions of the Korean Society for Noise and Vibration Engineering)

  • 제21권3호
  • /
  • Pages.227-233
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  • 2011
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  • 1598-2785(pISSN)
  • /
  • 2287-5476(eISSN)
한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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자기변형 트랜스듀서의 위상차를 이용한 평판에서의 Lamb파 집속 기초 실험

Basic Experiment for Lamb Wave Focusing by Phased Magnetostrictive Transducers in a Plate

  • 이주경 (서울대학교 기계항공공학부) ;
  • 김회웅 (서울대학교 기계항공공학부) ;
  • 이호철 (대구가톨릭대학교 기계자동차공학부) ;
  • 김윤영 (서울대학교 기계항공공학부)
  • 투고 : 2010.11.25
  • 심사 : 2011.02.01
  • 발행 : 2011.03.20
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초록

The ultrasonic guided wave phased array using magnetostrictive patch transducers is proposed. The magnetostrictive transducer has received much attention because it is cost-effective and capable to generate ultrasonic waves with a simple configuration. However, it has not been used for ultrasonic guided wave phased array applications until now. In this paper, we propose a magnetostrictive transducer based phased array system consisting of a multi-channel function generator, power amplifiers and Lamb wave magnetostrictive transducers. To check the performance of the ultrasonic guided wave phased array, several Lamb wave focusing experiments were carried out in an aluminum plate. The results demonstrated the capability of the developed array to focus the Lamb waves at specific target points.

키워드

참고문헌

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피인용 문헌

  1. Development and Application of Phased Array System for Defect Imaging in Plate-like Structures vol.24, pp.2, 2014, https://doi.org/10.5050/KSNVE.2013.24.2.123