Electrical Density Gauge
Electrical density gauge is a nuclear-free alternative for determining the moisture and density of compacted soils used in road beds and foundations.
When conducting a test, the EDG measures and displays the results for wet and dry density, gravimetric moisture content and percent compaction.
The EDG measures the electrical dielectric properties and moisture levels of compacted soil using high, radio frequency traveling between darts driven into the soil being tested. The dart’s depth of penetration positively determines the depth of measurement.
The dielectric properties measured by the unit are compared to a “soil model”, which has been developed and programed into the unit prior to testing. These soil models are required only once for each soil type, which is used as a calibration reference during the testing procedure.
Darts are available in 4″, 6″, 8″, 10″ and 12″ lengths.