Journal of the Korean Society for Marine Environment & Energy (한국해양환경ㆍ에너지학회지)

The Korean Society for Marine Environment and Energy (한국해양환경•에너지학회)
권호 표지
DOI QR코드

DOI QR Code

Implementation of Acoustic Properties Measurement System Based on LabVIEW Using PXI for Marine Sediment

PXI를 이용한 LabVIEW기반 해양퇴적물의 음향특성 측정시스템 개발

  • Park, Ki-Ju (Petroleum and Marine Research Division, Korea Institute of Geoscience and Mineral Resources) ;
  • Kim, Dae-Choul (Department of Energy Resources Engineering, Pukyong National University) ;
  • Lee, Gwang-Soo (Petroleum and Marine Research Division, Korea Institute of Geoscience and Mineral Resources) ;
  • Bae, Sung Ho (Petroleum and Marine Research Division, Korea Institute of Geoscience and Mineral Resources) ;
  • Kim, Gil Young (Petroleum and Marine Research Division, Korea Institute of Geoscience and Mineral Resources)
  • 박기주 (한국지질자원연구원 석유해저연구본부) ;
  • 김대철 (부경대학교 에너지자원공학과) ;
  • 이광수 (한국지질자원연구원 석유해저연구본부) ;
  • 배성호 (한국지질자원연구원 석유해저연구본부) ;
  • 김길영 (한국지질자원연구원 석유해저연구본부)
  • Received : 2015.07.08
  • Accepted : 2015.07.31
  • Published : 2015.08.25
Download PDF
⟨ Previous Next ⟩

Abstract

A previous velocity measurement system for marine sediment had several problems such as the errors occurred when picking first arrival time and the inconvenient measurement procedure. In order to resolve these problems, we developed a new acoustic properties measurement system by using PXI (PCI eXtentions for Instrumentation) module based on LabVIEW. To verify the new system, we measured the velocity and attenuation of sediment using the new system in a parallel with the previous system under the same experimental environment. The result of measurement showed 1~2% margin of error for the velocity as well as similar attenuation values. We concluded that the new system can efficiently measure the acoustic properties of marine sediment. It also has an advantage to construct the database of acoustic data and raw signal.

기존의 자동음파전달속도 측정시스템을 이용하여 해양퇴적물의 음향특성을 측정하는 경우 최초도달신호시간의 결정에 발생하는 오류와 측정 절차의 번거로움 등의 몇 가지 문제점들이 존재한다. 이러한 문제점을 개선하기 위하여 PXI모듈을 이용한 LabVIEW기반의 측정 시스템을 개발하였다. 새로운 측정시스템을 검증하기 위해 동일한 시료와 실험환경에서 기존 시스템과 병행하여 측정하였다. 그 결과 1~2%의 음파전달속도 측정오차를 보였으며 음파감쇠 역시 기존 시스템과 유사한 결과 값을 도출하였다. 새로이 개발된 PXI(PCI eXtentions for Instrumentation)를 이용한 LabVIEW 기반 음향특성 측정시스템은 퇴적물의 음향특성을 보다 신속하고 효율적으로 측정할 수 있고 측정 자료뿐만 아니라 분석된 신호의 원시자료에 대해서도 지속적인 데이터베이스를 구축할 수 있다.

Keywords

References

  1. Birch, F., 1960, "The velocity of compressional waves in rocks to 10 kilobars, part 1", J. Geophys. Res., Vol. 65, No. 4, 1083-1102. https://doi.org/10.1029/JZ065i004p01083
  2. Boyce, R.E., 1976, "Definitions and laboratory techniques of compressional sound velocity parameters and wet-water content, wet-bulk density, and porosity parameters by gravimetric and gamma-ray attenuation techniques", Init. Repts. DSDP, Vol. 33, 931-958.
  3. Folk, R.L., 1968, "Petrology of sedimentary rocks", Hamphill's Austin, Texas, 170.
  4. Hahn, J.Y., Lee, H.U. and Lee, B.K., 2007, "Influence of the geoacoustic parameters of seabed appearing in the broadband interference pattern by moving targets", Jounal of the KIMST, Vol. 10, No. 3, 43-50.
  5. Hamilton, E.L., 1972, "Compressional-Wave Attenuation in Marine Sediments", Geophys., Vol. 37, No. 4, 620-646. https://doi.org/10.1190/1.1440287
  6. Jackson, D.D. and Anderson, D.L., 1970, "Physical mechanisms of seismic-wave attenuation", Rev. Geophys., Vol. 8, No. 1, 1090-1098.
  7. Kim, D.C., Manghnani, M.H. and Schlanger, S.O., 1985, "The role of diagenesis in the development of physical properties of deep-sea carbonate sediments", Mar. Geol., Vol. 69, No. 1, 69-91. https://doi.org/10.1016/0025-3227(85)90134-3
  8. Kim, S.R. and Suk, B.C., 1985, "The sound velocity and attenuation coefficient of the marine surface sediments in the nearshore area", J. Kor. Soc. Ocean., Vol. 20, No. 2, 10-21.
  9. Kim, D.C., 1989, "Laboratory determination of compressional wave velocity for unconsolidated marine sediment", J. Kor. Fish. Soc., Vol. 22, No. 3, 147-153.
  10. Kim, D.C. and Kim, G.Y., 1991, "Physical and acoustic properties for unconsolidated sediment in the Kwangyang Bay: In comparison with the continental terrace sediment in the North Pacific", J. Kor. Fish. Soc., Vol. 24, No. 5, 289-302.
  11. Kim, G.Y., Sung, J.Y., Kim, D.C. and Kim, J.C., 1994, "Physical and acoustic properties of sediment around the Yeosu sound", J. Kor. Fish. Soc., Vol. 27, No. 4, 434-444.
  12. Kim, D.C., Kim, G.Y., Seo, Y.K., Ha, D.H., Ha, I.C., Yoon, Y.S. and Kim, J.C., 1999, "Automated velocity measurement technique for unconsolidated marine sediment", J. Kor. Soc. Ocean., Vol. 4, No. 4, 400-404.
  13. Kim, D.C., Park, S.C. and Seo, Y.K., 2001, "Characteristics of velocity and electrical resistivity in gassy sediments: Results of mudbelt sediments in the southeastern inner shelf of Korea", J. Kor. Soc. Ocean., Vol. 6, No. 4, 249-258.
  14. Kim, D.C., Sung, J.Y., Park, S.C., Lee, G.H., Choi, J.H., Kim, G.Y., Seo, Y.K. and Kim, J.C., 2001, "Physical and acoustic properties of shelf sediments, the South Sea of Korea", Mar. Geol., Vol. 179, No. 1, 39-50. https://doi.org/10.1016/S0025-3227(01)00200-6
  15. Kim, G.Y., Kim, D.C., Shin, B.K., Seo, Y.K. and Lee, G.H., 2005, "Geoacoustic model of surface sediments in the east of Geoje Island, the south sea of Korea", J. Kor. Soc. Ocean., Vol. 10, No. 2, 129-138.
  16. Kim, G.Y., Yoo, D.G. and Ryu, B.J., 2009, "Sound velocity property of sediment containing gas hydrate in the Ulleung Basin", J. Acoust. Soc. Kor., Vol. 28, No. 5, 424-431.
  17. Kim, G.Y., Kim, D.C., Yoo, D.G. and Shin, B.K., 2011, "Physical and geoacoustic properties of surface sediments off eastern Geoje Island, South Sea of Korea", Quat. Int., Vol. 230, No. 1, 21-33. https://doi.org/10.1016/j.quaint.2009.07.028
  18. Sears, F.M. and Bonner, B.P., 1981, "Ultrasonic Attenuation Measurement by Spectral Ratios Utilizing Signal Processing Techniques", IEEE Trans. Geosci. Remote Sens., Vol. GE-19, No. 2, 95-99. https://doi.org/10.1109/TGRS.1981.350359
  19. Seo, Y.K. and Kim, D.C., 2000, "Acoustic property of sandy sediment in the korea strait using sediment sound velocimeter", J. Acoust. Soc. Kor, Vol. 19, No. 3, 77-85.
  20. Shumway, G., 1960, "Sound speed and absorption studies of marine sediments by a resonance method", Geophys., Vol. 25, No. 2, 451-467. https://doi.org/10.1190/1.1438717
  21. Toksoz, M.N. and Johnston, D.H., 1979, "Attenuation of seismic waves in dry and saturated rocks: I. Laboratory measurements", Geophys., Vol. 44, No. 4, 681-690. https://doi.org/10.1190/1.1440969
  22. Toksoz, M.N. and Johnston, D.H., 1981, "Seismic wave attenuation", No. 2, Soc. Explor. Geophys.

Cited by

  1. Correcting the Sound Velocity of the Sediments in the Southwestern Part of the East Sea, Korea vol.37, pp.7, 2016, https://doi.org/10.5467/JKESS.2016.37.7.408
  2. Seafloor Velocity Measurement Tool pp.1521-0618, 2018, https://doi.org/10.1080/1064119X.2016.1236858