Journal of KSNVE (소음진동)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
권호 표지

Experimental Study on Signal Sensing of a High Sensitive Fiber Optic Hydrophone

실험을 통한 소형 고감도 광섬유 하이드로폰의 감지성능 연구

  • 김정석 (국방과학연구소 수중음향센서연구실) ;
  • 윤형규 (국방과학연구소 수중음향센서연구실) ;
  • 설재수 (국방과학연구소 수중음향센서연구실)
  • Published : 1999.12.01
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Abstract

In this study, a fiber optic air-backed mandrel hydrophone has been constructed and performance of acoustic signal detection has been measured. The hydrophone is based on a Mach-Zehnder interferometer with 35 m of sensing fiber. The sensitivity is measured up to -128 dB re rad/$\mu$ Pa in range from 1.4 kHz to5 kHz. A system with this design of hydrophone may be applied to detect low frequency underwater acoustic signals.

Keywords

References

  1. 1997 NRL Review 64-Channel All-Optical Deployable Array Kerkendall,C.K.;Davis,A.R.;Dandridge,A.;Kersey,A.D.
  2. Proceedigns of the Institute of Acoustics v.12 Design and Construction of Practical Optical Fiber Hydrophones Nash,P.J.;Keen,J.
  3. IEEE Journal of Lightwave Technology v.LT-5 no.5 Theoretical Analysis of a Push-Pull Fiber-Optic Hydrophone McDearmon,G.F.
  4. 한국소음진동공학회지 v.9 no.2 중공원통형 광섬유 하이드로폰의 감도해석 김정석;윤형규;설재수;남성현
  5. 국방과학연구소 기술보고서(NWSD-517-971574) TDM 방식의 2채널 광섬유 하이드로폰 배열 특성 연구 남성현;양창섭