A Step Frequency Georadar Module For An Environmental Cone Penetrometer

NGI has developed a module for the cone penetration test implementing the NGI step<br>frequency radar system. The instrument will allow nearly continuous measurements of the<br>dielectric constant and the bulk soil resisitivity throughout a vertical soil profile. The module<br>will be used in environmental investigations, where contaminants may alter these parameters<br>from the natural value in uncontaminated soils. This paper presents the technical details of the<br>design and some preliminary laboratory test results.