The Journal of the Acoustical Society of Korea

한국음향학회 (The Acoustical Society of Korea)
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원통형 배면체를 갖는 PZT 트랜스듀서의 특성평가

Characteristics Evaluation for a PZT Transducer with a Cylindrical Rear Surface

  • 발행 : 2007.03.31
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초록

The characteristics of a PZT transducer with a cylindrical rear surface were investigated theoretically and experimentally. The transducer was assumed as a set of finite rectangular ceramic elements for applying the staircase model to the theoretical analysis and the KLM equivalent circuit model was modified for analyzing its electric impedance and pulse-echo response. All results were compared with those of a conventional plane transducer which has a constant thickness of average value for the cylindrical arc. It was noted that the transducer with a cylindrical rear surface has several subsidiary resonant frequencies which are able to widen bandwidth.

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참고문헌

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