Electrical Properties Cup (EPC) for characterizing water content of martian and lunar soils

M. G. Buehler, H. Bostic, K. B. Chin, T. McCann, D. Keymeulen, R. C. Anderson, S. Seshadri, M. G. Schaap

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

6 Scopus citations


In this effort we used electrical impedance spectroscopy and a four-probe apparatus, the Electrical Properties Cup (EPC), to measure the properties of various lunar and martian soil simulants. The impedance values are characterized by a resistance-capacitor network that is used to determine the soil conductivity and dielectric constant. In this effort we measured the impedance of different types of martian soil simulants (Silica sand, Atacama Desert sand, and Moses Lake basalt) and lunar simulants. The results show that the soil impedance measurements are strongly dependent on water content and soil type and to a lesser extent particle size and electrolyte concentration. This presentation describes the experimental four-probe apparatus, procedures used to prepare the samples including soil washing and loading, and soil impedance measurements.

Original languageEnglish (US)
Title of host publication2006 IEEE Aerospace Conference
StatePublished - 2006
Event2006 IEEE Aerospace Conference - Big Sky, MT, United States
Duration: Mar 4 2006Mar 11 2006

Publication series

NameIEEE Aerospace Conference Proceedings
ISSN (Print)1095-323X


Other2006 IEEE Aerospace Conference
Country/TerritoryUnited States
CityBig Sky, MT

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science


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