Dielectric relaxation effects on permittivity of surface soils

Marcel Schaap, Jan M H Hendrickx

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The detectability of buried non-conductive objects with high frequency dielectric methods depends strongly on the contrast between the dielectric properties of the object and the surrounding soil. In this study we report on effects of dielectric relaxation phenomena on the dielectric "constant" of five texturally different soils. We found that fine textured soils (loam, silt and clay) exhibit significant decreases in permittivity between 100 and 1000 MHz. It was also found that the strength of the decrease depends linearly on the soil water content and that the high-frequency permittivity of the soils follow the Topp-curve. The changes in permittivity, however, do not significantly increase the detectability of buried non-conductive low-permittivity objects in soil.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsR.S. Harmon, T. Broach, J.H. Holloway, Jr.
Pages135-143
Number of pages9
Volume5794
EditionPART I
DOIs
Publication statusPublished - 2005
Externally publishedYes
EventDetection and Remediation Technologies for Mines and Minelike Targets X - Orlando, FL, United States
Duration: Mar 28 2005Apr 1 2005

Other

OtherDetection and Remediation Technologies for Mines and Minelike Targets X
CountryUnited States
CityOrlando, FL
Period3/28/054/1/05

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Keywords

  • Electric conductivity dielectric relaxation
  • Soil dielectric properties

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Schaap, M., & Hendrickx, J. M. H. (2005). Dielectric relaxation effects on permittivity of surface soils. In R. S. Harmon, T. Broach, & J. H. Holloway, Jr. (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (PART I ed., Vol. 5794, pp. 135-143). [14] https://doi.org/10.1117/12.604148