1887
Volume 61, Issue 3
  • E-ISSN: 1365-2478

Abstract

ABSTRACT

Although metal detectors remain the workhorses of humanitarian demining, it is well established that the performance of both continuous wave (frequency domain) and pulsed induction (time domain) detectors can be severely compromised by so‐called ‘soil‐effects’. Generally, problem soils reduce the signal‐to‐noise ratio and increase the false‐detection rate. In certain locations, the soil‐effect is so severe as to render the detector practically inoperable. The current study is part of an ongoing international effort to establish and quantify the influence of soil electromagnetic properties on the operation of metal detectors and related sensor technologies. In particular, we examine the relative influence of soil electrical conductivity, magnetic susceptibility and associated frequency dependence on the time domain electromagnetic (TDEM) response of pulsed induction metal detectors and related small‐scale TDEM sensors.

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2012-11-23
2024-04-28
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References

  1. BillingsS.D., PasionL.R. and OldenburgD.W.2003a. Characterizing magnetic soils: State of the art and future needs. ITEP Workshop on Reliability Tests for Demining, Berlin , Germany , December 17, 2003.
    [Google Scholar]
  2. BillingsS.D., PasionL.R., OldenburgD.W. and FoleyJ.2003b. The influence of magnetic viscosity on electromagnetic sensors. Proceedings EUDEM2‐SCOT2003, pp. 123–130, Vrije Universiteit Brussel, Brussels , Belgium .
    [Google Scholar]
  3. BorryF., GuelleD. and LewisA.2003. Soil characterization for evaluation of metal detector performance. Proceedings EUDEM2‐SCOT‐2003, pp. 115–122, Vrije Universiteit Brussel, Brussels , Belgium .
    [Google Scholar]
  4. BruschiniC.2004. On the low‐frequency EMI response of coincident loops over a conductive and permeable soil and corresponding background reduction schemes. IEEE Transactions on Geoscience and Remote Sensing 42, 8, 1706–1719.
    [Google Scholar]
  5. CEN
    CEN2008. Humanitarian mine action – Test and evaluation – Part 2: Soil characterization for metal detector and ground penetrating radar performance. CWA 17747–2, European Committee for Standardization, Brussels .
    [Google Scholar]
  6. ChikazumiS.1964. Physics of magnetism . Wiley, New York .
    [Google Scholar]
  7. ColaniC. and AitkenM.J.1966. Utilization of magnetic viscosity effects in soils for archaeological prospection. Nature 212, 1446–1447.
    [Google Scholar]
  8. ColeK.S. and ColeR.H.1941. Dispersion and adsorption in dielectrics. Journal of Chemical Physics 9, 341–351.
    [Google Scholar]
  9. CrossG.2008. Soil electromagnetic properties and metal detector performance: Theory and measurement. Canadian Centre for Mine Action Technologies, Contract Report, DRDC Suffield CR 2009–062.
    [Google Scholar]
  10. DabasM., JolivetA. and TabbaghA.1992. Magnetic susceptibility and viscosity of soils in a weak time varying field. Geophysical Journal International 108, 101–109.
    [Google Scholar]
  11. DasY.2004. A preliminary investigation of the effects of soil electromagnetic properties on metal detectors. Proceedings of SPIE 5415, 677–690.
  12. DasY.2006. Effects of soil electromagnetic properties on metal detectors. IEEE Transactions on Geoscience and Remote Sensing 44, 6, 1444–1453.
    [Google Scholar]
  13. De LoorG.P.1983. The dielectric properties of wet materials. IEEE Transactions on Geoscience and Remote Sensing 21, 3, 364–369.
    [Google Scholar]
  14. DearingJ.A., DannR.J.L., HayJ.A., LovelandB.A., MaherB.A. and O’GradyK.1996. Frequency‐dependent susceptibility measurements of environmental materials. Geophysical Journal International 124, 228–240.
    [Google Scholar]
  15. DebyeP.1929. Polar molecules . Dover , New York .
    [Google Scholar]
  16. DunlopD.J. and ÖzdemirÖ.1997. Rock magnetism: Fundamentals and frontiers . Cambridge University Press, Cambridge .
    [Google Scholar]
  17. El‐KailoubyH.M., HussainS.A., BayoumiA.E., El‐DiwanyE.A. and HashishE.A.1995. Effect of clayey media parameters on the negative response of a coincident loop. Geophysical Prospecting 43, 595–603.
    [Google Scholar]
  18. El‐KailoubyH.M., El‐DiwanyE.A., HussainS.A., HashishE.A. and Bayoumi 1997. Optimum negative response of a coincident‐loop electromagnetic system above a polarizable half‐space. Geophysics 62, 75–79.
    [Google Scholar]
  19. EyreJ.K.1997. Frequency dependence of magnetic susceptibility for populations of single‐domain grains. Geophysical Journal International 129, 209–211.
    [Google Scholar]
  20. ForsterT., EvansM.E. and HellerF.1994. The frequency dependence of low field susceptibility in loess sediments. Geophysical Journal International 118, 636–642.
    [Google Scholar]
  21. FrischknechtF.C.1987. Electromagnetic physical scale modelling. In: Electromagnetic methods in applied geophysics , Vol. 1. Society of Exploration Geophysicists, Tulsa .
    [Google Scholar]
  22. FrölichH.1958. Theory of dielectrics . Second Edition, Clarendon Press, Oxford .
    [Google Scholar]
  23. GICHD
    GICHD2006. Guidebook on detection technologies and systems for humanitarian Demining. Geneva International Centre for Humanitarian Demining, Publication No. 46, Geneva .
    [Google Scholar]
  24. GuelleD.2002. Soil and its influence on metal detector performance. ITEP Workshop on Soil electromagnetic properties and metal detector performance, ECJRC, Ispra . http://itep.ws/pdf/proceedings.pdf.
    [Google Scholar]
  25. GuelleD.M., LewisA.M. and RipkaP.2002. Metal detector trials: Detector test results and their interpretation. European Commission, Joint Research Centre, IPSC, EUR 22534, Ispra .
    [Google Scholar]
  26. IgnetikR., ThioY.C. and WestfoldK.C.1985. Transient electromagnetic field above a permeable and conducting half‐space. Geophysical Journal of the Royal Astronomical Society 81, 623–639.
    [Google Scholar]
  27. IlicetoV., SantaratoG. and VeroneseS.1982. An approach to the identification of fine sediments by induced polarization laboratory measurements. Geophysical Prospecting 30, 331–347.
    [Google Scholar]
  28. LeeT.1981. Transient electromagnetic response of a polarizable ground. Geophysics 46, 7, 1037–1041.
    [Google Scholar]
  29. LeeT.1984. The transient electromagnetic response of a magnetic or superparamagnetic ground. Geophysics 49, 7, 854–860.
    [Google Scholar]
  30. LeeT. and LewisR.1974. Transient EM response of a large loop on a layered ground. Geophysical Prospecting 24, 430–444.
    [Google Scholar]
  31. MacDonaldJ., LockwoodJ.R., McFeeJ., AltshulerT., BroachT., CarinL. et al . 2003. Alternatives for landmine detection. Rand Corporation, Santa Monica .
    [Google Scholar]
  32. MaherB.A.1988. Magnetic properties of some synthetic sub‐micron magnetites. Geophysical Journal International 94, 83–96.
    [Google Scholar]
  33. MehranM. and ArulanandanK.1977. Low frequency conductivity dispersion in clay‐water‐electrolyte systems. Clays and Clay Minerals 25, 39–48.
    [Google Scholar]
  34. MullinsC.E. and TiteM.S.1973. Magnetic viscosity, quadrature susceptibility and frequency dependence of susceptibility in single‐domain assemblies of magnetite and maghemite. Journal of Geophysical Research 78, 5, 804–809.
    [Google Scholar]
  35. MuxworthyA.R.2001. Effect of grain interactions on the frequency dependence of magnetic susceptibility. Geophysical Journal International 144, 441–447.
    [Google Scholar]
  36. NagataT.1961. Rock magnetism . Revised Edition, Maruzen Company Ltd., Tokyo .
    [Google Scholar]
  37. NowickA.S. and BerryB.S.1961. Lognormal distribution function for describing anelastic or other relaxation processes. IBM Journal , October, 1961, 297–311.
    [Google Scholar]
  38. OgilvyA.A. and KuzminaE.N.1972. Hydrogeologic and engineering‐geologic possibilities for employing the method of induced potentials. Geophysics 37, 5, 839–861.
    [Google Scholar]
  39. OlhoeftG.R.1985. Low‐frequency electrical properties. Geophysics 50, 2492–2503.
    [Google Scholar]
  40. OlhoeftG.R.1987. Electrical properties from 10−3 to 10+9 Hz – Physics and chemistry. Proceedings of 2nd International Symposium on the Physics and Chemistry of Porous Media . American Institute of Physics ,Conference Proceeding 154, AIP , New York .
  41. PeltonW.H., WardS.H., HallofP.G., SillW.R. and NelsonP.H.1978. Mineral discrimination and removal of inductive coupling with multifrequency IP. Geophysics 43, 3, 588–609.
    [Google Scholar]
  42. PreetzH. and IgelJ.2005. Untersuchung der frequenzabhangigeon komplexen suszeptibilitat an bodenproben von testflachen in Benkovac, Kroatien, Leibniz. Institute for Applied Geosciences, http://www.gga‐hannover.de, Hannover , Germany .
    [Google Scholar]
  43. RaicheA.P.1983. Negative transient voltage and magnetic field responses for a half‐space with a Cole‐Cole impedance. Geophysics 48, 6, 790–791.
    [Google Scholar]
  44. RaicheA.P. and SpiesB.R.1981. Coincident loop transient electromagnetic master curves for interpretation of two‐layer earths. Geophysics 46, 1, 53–64.
    [Google Scholar]
  45. RichterG.1937. Uber die magnetische nachwirkung am carbonyleisen. Annalen der Physik 29, 605–635.
    [Google Scholar]
  46. WagnerK.W.1913. The theory of incomplete dielectricity. Annalen der Physik 40, 5, 817–855.
    [Google Scholar]
  47. WardS.H. and HohmannG.W.1987. Electromagnetic theory for geophysical applications. In: Electromagnetic methods in applied geophysics , Vol. 1, Society of Exploration Geophysicists, Tulsa .
    [Google Scholar]
  48. WestG.F. and BaileyR.C.2005. An instrument for measuring complex magnetic susceptibility of soils. Proceedings of SPIE 5794, 124–134, 2005.
    [Google Scholar]
  49. WormH.‐U.1998. On the superparamagnetic‐stable single domain transition for magnetite, and frequency dependence of susceptibility.
  50. YagerW.A.1936. The distribution of relaxation times in typical dielectrics. Physics 7, 434–450.
    [Google Scholar]
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  • Article Type: Research Article
Keyword(s): Demining; Electromagnetic; Soil Properties; TDEM

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