Soil Dielectric Spectra from Vector Network Analyzer Data

  title={Soil Dielectric Spectra from Vector Network Analyzer Data},
  author={Sally D. Logsdon},
  journal={Soil Science Society of America Journal},
  • S. Logsdon
  • Published 1 July 2005
  • Geology
  • Soil Science Society of America Journal
For more than two decades, dielectric properties (i.e., permittivity) have been used for soil water content measurements, but unexpected results have been shown for saline soils or soils high in smectite clays. Permittivity is complex with real and imaginary components, and varies with frequency. The frequency dependence is due to dipole rotation and charge migration processes under alternating current. Dielectric relaxation refers to the reorienting of molecules after an electrical field is… 

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