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

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Development of Underwater Wide-band Acoustic Transducer Using the 1-3 Piezoelectric Composite

1-3형 압전복합체를 이용한 광대역 수중 음향 트랜스듀서 개발

  • 이경우 (경원훼라이트공업㈜ 부설연구소) ;
  • 소형종 (경원훼라이트공업㈜) ;
  • 임실묵 (한국산업기술대학교 신소재공학과) ;
  • 김원호 (국방과학연구소 6기술본부) ;
  • 김대연 (국방과학연구소 6기술본부)
  • Published : 2008.04.20
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Abstract

Recently, it is required that acoustic transducers for underwater detection and communication sensor have wide bandwidth and low operating frequency. In this research, the new acoustic transducer is proposed. This transducer is tonpilz type, and made of 1-3 piezoelectric composites as a driving parts. The developed transducer is evaluated the TVR(transmission voltage response) and RVS(receiving voltage sensitivity) characteristics around $4{\sim}14\;kHz$ frequency range and is compared to conventional tonpilz transducer made of solid piezoelectric ceramics as a driving parts. The resonance frequency of the developed transducer is decreased by 30% and the -3 dB bandwidth is increased by 90%, compared to conventional transducer with same dimensions. The value of TVR is decreased by 9 dB and The value of RVS is the same at resonance frequency.

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References

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