The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Development of Next Generation Sonar by Acoustic Lens

음향렌즈를 이용한 차세대 소나개발

  • Choi, Jo-Cheon (Dept. of Marine Computer Enginnering, Mokpo Maritime University) ;
  • Kim, Sang-Hoon (Division of Marine Engineering System, Mokpo Maritime University) ;
  • Lee, Seong Ro (Dept. of Information & Electronics Engineering, Mokpo National University)
  • Received : 2014.10.08
  • Accepted : 2014.12.08
  • Published : 2014.12.31
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Abstract

We develop new sonar system by way of acoustic focusing which is totally different from conventional one in principle. It focuses input wave on the opposite edge of the lens without aberration perfectly. Then, the motion of acoustic source is read by naked eyes. It can be used as an acoustic window deep underwater by converting sound into light. We introduce the sonar in actual size that can be used underwater and report current situation of the development.

기존의 음파의 위상차를 이용하여 음원의 위치와 움직임을 파악하던 소나와 원리가 전혀 다른 음향렌즈형 소나를 개발한다. 이 음향렌즈형 소나는 파동을 수차 없이 렌즈의 반대편 가장자리의 한 점에 완벽히 모으므로 음원의 움직임을 직접 눈으로 볼 수 있다. 소리를 빛으로 바꾸어 움직임을 바로 인식하므로 빛이 전혀 들어오지 않는 깊은 해저의 음향창으로 사용될 수 있다. 실질적으로 사용이 가능한 크기의 소나 모형을 소개하고 현재까지의 개발상황을 보고한다.

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References

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